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93 Phase I Selections from the 97.2 Solicitation

(In Topic Number Order)
AMERICAN XTAL TECHNOLOGY
4311 Solar Way
Fremont, CA 94538
Phone:
PI:
Topic#:
(510) 683-5900
Heikki Helava
NAVY 97-100
Title:Pressure Dependence of AlN Growth Rate
Abstract: Slack developed a thermodynamic model to predict how AlN crystal growth would vary with system pressure. He concluded growthrate increases proportionally to the square root of the nitrogen partial pressure. Thus he predict that increasing the pressure by a factor of 100 would increase the growthrate by a factor of 10. However, to date, the effect of the pressure on the growthrate has not been experimentally determined. A counter argument can be made that the growthrate should increase by reducing the pressure. Slack based his arguments on the supposition that the process is in equilibrium, but more realistically, the growthrate is limited by either the kinetics of sublimation (at the AlN powder source) or condensation (at the seed crystal) and mass transport between the source and seed. If the condensation rate is rapid and nearly irreversible, the AlN growthrate will be limited by the sublimation process. The sublimation process is analogous to evaporation, for which it has been established that the evaporation rate is directly proportional to the pressure above the melt. Thus, the evaporation rate is enhanced with a reduction in the system pressure. Furthermore, mass transfer rates are increased as the pressure is reduced since gas phase diffusion coefficients are directly proportional to the pressure. High pressures may in fact be detrimental to crystal growth, as gas-phase convection increases with pressure, and convection can lead to nonuniform growthrates of the crystal. In the analogous SiC bulk crystal growth technique, the crystal growthrate does indeed increase as the system pressure is reduced. Because the sublimation - recondensation crystal processes are similar for both AlN and SiC, it is reasonable to assume that AlN crystal growthrate also increases with a decrease in pressure.

CRYSTAL IS, INC.
25 Cord Dr.
Latham, NY 12110
Phone:
PI:
Topic#:
(518) 276-4015
Glen A. Slack
NAVY 97-100
Title:Development of Commercially Viable Growth Rates for Bulk
Abstract: We propose to develop AlN substrates for III-nitride epitaxy which will be superior to all substrates currently available commercially. In particular, the AlN substrates have significantly superior chemical compatibility, lattice/crystal structure match, thermal expansion match, and thermal conductivity when compared to sapphire substrates that are currently being extensively used for epitaxial growth. Production of bulk crystals of AlN will be easier than production of GaN or InN crystals due to the higher crystal growth rates possible for comparable nitrogen pressures. In addition, the higher thermal conductivity, larger band-gap energy and higher thermal stability of AlN will be attractive for many nitride applications. Our approach to bulk AlN crystal growth will be based on the sublimation- recondensation technique first developed for this material by Slack and McNelly. However, a significant reduction in the cost of individual substrates could be achieved if the growth rate is increased from the 0.3 mm/hr demonstrated in Slack's prior work. Here we propose to develop techniques to increase the growth rate to over 1 mm/hr based on our prior studies of the growth kinetics. In addition, we will demonstrate an appropriate substrate polishing technique during Phase I of this proposal using our existing AlN substrates.

CONDUCTUS, INC.
965 W. Maude Ave
Sunnyvale, CA 94086
Phone:
PI:
Topic#:
(408) 523-9496
Gregory A. Lehmann
NAVY 97-101
Title:Development of an HTS Transmit Filter Package System thatProvides Uniform Cooling
Abstract:Conductus proposes to develop an HTS transmit filter package system that provides uniform cooling to the HTS elements of the filter. An isothermal or as near as possible temperature distribution in the filter elements is highly desirable for optimum filter performance. Both filter design and package system design ultimately impact filter performance; this program emphasizes the contributions of package design. The main goal of the proposed effort is to design an HTS transmit filter package that is mechanically stable and provides an isothermal environment or as close to as needed to realize good HTS transmit filter performance. Key items that will be addressed are resonator design, package system thermal performance, and package system structural details such as tuning stability, wafer bonding, and cryocooler interface.

CREARE, INC.
Etna Rd., P.O. Box 71
Hanover, NH 03755
Phone:
PI:
Topic#:
(603) 643-3800
Dr. Michael G. Izenson
NAVY 97-101
Title:Cryogenic Cooling for Vertically Arrayed HTS Devices
Abstract: The objective of this project is to develop practical, cryogenic packaging technology for HTS devices that are packaged in rigidly bonded, vertical arrays. The approach is to develop uniform-temperature cooling planes that can be integrated directly with an array of HTS substrates. In Phase I we will demonstrate the feasibility of the integral cooling planes by (1) specifying the thermal and interface requirements for the cooling planes, (2) selecting a cryogenic cooling system that can provide the needed cooling, and (3) demonstrating the fabrication and cryogenic operation of the integral cooling plane using standard microwave substrates for YBCO circuits.

SENSORS UNLIMITED, INC.
3490 U.S. Route 1, Building 12
Princeton, NJ 08540
Phone:
PI:
Topic#:
(609) 520-0610
Dr. Alan R. Sugg
NAVY 97-102
Title:"Type II Interband Quantum Cascade Mid-Infrared Laser"
Abstract: Sensors Unlimited will grow, fabricate and test a Type II AlGaAsSb/InAs/InGaSb interband quantum cascade laser (QCL) designed to operate at a wavelength of 3.3 ¶m. The goal of this program is the delivery of the relevant basic material and structural characterization necessary for the design of a type II interband quantum cascade laser along with a QCL operating at a temperature of at least 273 K. The motivation for a 3.3 ¶m wavelength is the commercial potential of mid-infrared laser diodes for CH4 gas-sensing applications. In order to achieve this goal, Sensors Unlimited will use the services of Sarnoff Corporation to grow and fabricate low-loss broadened waveguide laser structures in the antimonide system. In addition to the electrical injection laser structure, we will separately fabricate and test the optical gain and superlattice electrical injection regions of the quantum cascade active region in order to evaluate the basic material properties, such as absorption, thermal conductivity, and the electrical and optical performance of the respective regions. Data from these measurements will prove invaluable for further designs to be fabricated and tested in Phase II of the program. For this program, Sensors Unlimited and Sarnoff Corporation will leverage the experience gained by successful commercialization of 2.6 ¶m antimonide-based Type I quantum well lasers.

MILLIMETER WAVE TECHNOLOGY, INC.
1920 West Oak Circle, Suite 200
Marietta, Ga 30062
Phone:
PI:
Topic#:
(770) 425-9382
Dr. Dennis Kozakoff
NAVY 97-103
Title:Advanced Antenna Concepts
Abstract: Navy Applications of compact antennas span nearly all frequency bands, from ELF to SHF. In the short wavelength bands, electronically-steered array applications would benefit from small element-to-element spacing because in such geometries The effort begins with fundamental approaches to achieving wideband performance, with an emphasis on microstrip antenna elements. Surface mode microstrip (SMM) is shown viable. Next, antenna radar cross section (RCS) is investigated from the viewpoint of both structural and antenna mode scatter. Methods of reducing both of these components are addressed. In particular, structural mode scatter may be reduced with a structural RAM plastic, while antenna mode scatter requires special matching conditions.

PATRIOT SCIENTIFIC CORP.
10989 Via Frontera
San Diego, CA 92127
Phone:
PI:
Topic#:
(619) 674-5000
Elwood G. Norris
NAVY 97-103
Title:Ionized Plasma Antenna Development Concept
Abstract:By utilizing ionized conductors as antenna elements (ICA) you can construct an antenna that can be dynamically reconfigured for frequency, directionality, bandwidth, gain and beamwidth. Further, the antenna could be deionized when not in use, which will substantially reduce its radar cross-section and thus it's detectability (stealth). When used as an impulse transmitter, extremely short pulses are possible by deionizing the antenna to prevent ringing associated with traditional antenna configurations, thus combining the benefits of low probability of intercept (outgoing signal) with low probability of detection (stealth). Further, the extremely short impulse(because ringing was prevented) will allow substantially improved wavelet decomposition of the return with less computational overhead. The improved decomposition yields greater accuracy in the target detection and classification algorithms.

COHERENT TECHNOLOGIES, INC.
655 Aspen Ridge Drive
Lafayette, CO 80026
Phone:
PI:
Topic#:
(303) 604-2000
Dr. Geoff A. Wilson
NAVY 97-104
Title:4D Atmospheric Data Retrieval with an Airborne Solid-State LIdar
Abstract: The proposed Phase I/II program develops a flexible, modular 3D scanner for integration aboard small research aircraft and unmanned aerial vehicles (UAV), with a variety of solid-state coherent lidar sensors. The Phase I effort explores both mechanical and non-mechanical scanner architectures in an effort to benefit both research aircraft and UAV, as well as commercial airliner lidar platforms in the lidar marketplace. The most promising scanner technique will be chosen for Phase II development. The scanner built under Phase II will be modular and versatile, in that it will be a bolt-on unit compatible with several available and emerging transceiver designs, for a variety of airborne experiments. The Phase I further extends the capabilities of coherent lidar wind-sensing technology by developing preliminary design extensions to existing lidar transceivers to incorporate dual polarization reception for aerosol characterization, as well as water vapor and temperature profiling.

METRATEK, INC.
12330 Pinecrest Rd.
Reston, VA 20191
Phone:
PI:
Topic#:
(703) 620-9500
Raymond L. Harris
NAVY 97-104
Title:Four-Dimensional Atmospheric and Oceanographic Instrumentation - Processing & Control Station and Data Link for RPV SAR
Abstract: Topic N97-104 has the objective of developing innovative instrumentation to obtain marine atmospheric and oceanographic variables in 3-D space and time. The proposed effort addresses several key areas that are mentioned in the solicitation: (1) application to the air/sea environment of the open ocean, continental slope and the very near-shore surf zone; (2) support of active electromagnetic sensors, in this case Synthetic Aperture Radar (SAR) remote sensing of the air-sea interface; (3) use of off-the-shelf, low-cost components.The area of investigation is the development of a new type of data link and a mobile ground Processing and Control Station (P&CS) to support an RPV or small manned aircraft that is being used to collect interferometric synthetic aperture radar (INSAR) or SAR data. The P&CS permits remote control of the RPV mission, monitoring of the GPS location of the RPV,display of real-time radar data to ensure data quality, and permits use of high-capacity commercial recording devices that would otherwise be too heavy and too power-hungry for use aboard the vehicle carrying the radar.

DYNAMICS TECHNOLOGY, INC.
21311 Hawthorne Blvd.
Torrance, CA 90503
Phone:
PI:
Topic#:
(310) 543-5433
Dr. Enson Chang
NAVY 97-105
Title:Shallow Water Synthetic Aperture Sonar
Abstract: Acoustical MCM and ASW operations in shallow water are plagued by the prevalence of false targets as well as strong reverberation and multipath. The combination of imaging and environmental adaptivity may be the key to overcoming these problems. Synthetic aperture sonar (SAS) is a revolutionary technology which provides at least an order of magnitude search rate improvement over side looking sonar (SLS) while maintaining the same resolution. Important classification and identification cues are obtained at search ranges by imaging the target's highlight structures and acoustic shadow. These cues will reduce false alarm rate (FAR) in MCM and may present the only viable means by which to discriminate low or no-doppler targets against clutter in ASW. Extending SAS capabilities into shallow water requires modifying the SAS processor to account for propagation effects. Dynamics Technology, Inc. (DTI) proposes several alternatives for incorporating model-based matched filtering (MBMF) into the existing SAS processing stream to counter multipath distortions of the signal waveform. We will also evaluate the effectiveness of "focalization" (or matched field tomography) for adaptively tracking environmental variations in the SAS imaging context. Emulated and recently collected field data will provide the test bed for these concepts.

LITE CYCLES, INC.
2010 N. Forbes Blvd., Suite 100
Tucson, AZ 85745
Phone:
PI:
Topic#:
(520) 798-1214
Lonnie K. Calmes
NAVY 97-105
Title:Raman Image Amplifier for Marine LIDAR Applications
Abstract:This project will focus on the development of a compact, rugged, low-maintenance, cost-effective, all solid-state Marine Raman Image Amplifier (MARIA) capable of amplifying low-level ocean LIDAR images and producing gated images with potential gate times of tens of picoseconds. The innovative technology to be implemented is based on a solid-state stimulated Raman scattering technique developed by our team. This proposal describes the unique features of this new technique for producing gated images and shows how this device can substantially improve underwater image resolution and reject interfering sunlight in bright daylight conditions. Integration of this device into an imaging marine LIDAR system has the potential to greatly improve classification and identification of sea mines and submarines. The MARIA can be seen as a technology alternative to microchannel plate image intensifiers that are limited in terms of spatial and temporal resolution and require complicated, bulky, and expensive high voltage electronics modules for operation.

DELPHI COMMUNICATION SYSTEMS
30 North Avenue
Burlington, MA 01803
Phone:
PI:
Topic#:
(617) 221-2200
Dr. John G. Proakis
NAVY 97-106
Title:Underwater Acoustic Channel and Network Optimization
Abstract:The objectives of this work are (1) to develop methods for acoustic channel prediction from nominal oceanographic data, and (2) to optimally design underwater acoustic networks to maximize the network surveillance performance, while minimizing its power consimption. The example network consists of a master node and a multitude of possibly mobile sensor nodes whose task is to report the information collected to the master node by relaying it from node to node. Acoustic channel characterization involves signal strngth prediction based on the transmossion loss; multipath intensity profile prediction based on acoustic propagation modeling, and prediction of Doppler spectrum due to random fluctuations using statistical characterization of surface scattering and nodes' spatial properties. In addition, adaptive channel estimation and interference prediction methods will be developed. Network design encompasses optimal dynamic routing and the choice of a multiple-access technique. It includes optimization of the network layout based on the acoustic channel prediction; network initialization procedure; data frame design; multiple-access technique optimization based on capacity calculations, and optimization of routing functions. Dynamic routing algorithm design provides adaptive selection of optimal routes based on the channel state, as well as flexibility to node failures and new node initializations. Acoustic channel characterization involves signal strngth prediction based on the transmossion loss; multipath intensity profile prediction based on acoustic propagation modeling, and prediction of Doppler spectrum due to random fluctuations using statist Network design encompasses optimal dynamic routing and the choice of a multiple-access technique. It includes optimization of the network layout based on the acoustic channel prediction; network initialization procedure; data frame design; multiple-access technique optimization based on capacity calculations, and optimization of routing functions. Dynamic routing algorithm design provides adaptive selection of optimal routes based on the channel state, as well as flexibility to node failures and new node initializations.

CENTER FOR REMOTE SENSING, INC.
P.O. Box 9244
McLean, VA 22102
Phone:
PI:
Topic#:
(703) 848-0800
Suman Ganguly
NAVY 97-107
Title:Satellite Based Sensors for Unambiguous Retrieval of Ionospheric Data in Conjunction with Ground Based Receivers
Abstract: We propose a small low powered satellite based instrument package consisting of EUV monitoring system, a modern swept frequency type sounder and a two frequency beacon. This package will provide primary standard measurements of electron density distributions in the topside ionosphere, where most of the ionization resides. Intercomparison of different satellite instruments and ground based measurements will help DMSP operations and enhance the space-weather activities. Intercomparison and validation of the ionospheric profiles derived with different techniques and from model predictions are essential for both operational enhancement and development of new techniques. These will help validation of different techniques, development of ionospheric tomography, understanding global morphology and other ionospheric processes. During Phase I, we address the issues associated with the development of such a system and perform an initial system design.

MICROFAB RESEARCH, INC.
338 Westfield Rd.
Charlottesville, VA 22901
Phone:
PI:
Topic#:
(804) 963-4490
Philip J. Koh
NAVY 97-107
Title:Application of Novel Micromachined Millimeter Wave Systems to Space Based Radiometers and Radar Systems
Abstract: Novel techniques have been developed for the application of micromachining techniques to the fabrication of millimeter and submillimeter wave components for space based receivers and radar systems. These techniques may permit significant reductions in costs of fabrication. Also, design cycles and system development may be accelerated. These techniques are compatible with the fabrication of linear and two-dimensional arrays of components, opening up new possibilities for space based millimeter wave systems.

CERAMARE CORP.
262 Lincoln Avenue
Highland Park, NJ 08904
Phone:
PI:
Topic#:
(732) 445-2724
Dr. Larry E. McCandlish
NAVY 97-108
Title:Seeded Hydrothermal Growth of Large PZT Crystals and Single-Crystal Array Transducers
Abstract:This SBIR Phase I project seeks to provide large seeds for the hydrothermal growth of centimeter-size lead zirconate titanate (PZT) crystals. Large crystals of strontium titanate (ST) and lanthanum alumminate (LA) share the same perovskite crystal structure with PZT and are readily available candidate for the heteroepitaxial growth of PZT. There is, however, a large a-axis lattice mismatch that inhibits nucleation of the PZT phase. Our preliminary experiments suggest that a sputtered nanolayer of PZT on ST substrated provides numerous nucleation sited for the hydrothermal growth of a dense single-crystal PZT overlayer ( as shown by our FESEM and X-ray diffraction studies). The nanostructured interlayer eases the transition between the substrate lattice and the PZT lattice, accommodating the lattice mismatch and relieving the accompanying stress. Having circumvented the lattice mismatch problem, hydrothermal processing should provide a high growth rate leading to a large single crystals of PZT in reasonably short time. In Phase I program we will test the feasibility of hydrothermally growing single crystals of PZT on interlayer prepared ST and LA seeds (5mm x 5mm). We will also examine the feasibility of growing single crystal arrays on substrates that have an interlayer pattern written upon them.

CRYSTAL ASSOC., INC.
31 Farinella Drive
East Hanover, NJ 07936
Phone:
PI:
Topic#:
(973) 581-1717
Paul Bridenbaugh
NAVY 97-108
Title:Growth of Single Crystal Piezoelectrics
Abstract: Single crystals of lead magnesium niobate-lead titanate have superior dielectric and piezoelectric properties. To date all crystals have been grown by flux techniques and sizes have been small. Also growth rates in flux systems are slow. In this study we will investigate growth of PMN-PT by a melt technique, specifically the Bridgman technique. We will study by DTA the liquidus and solidus temperature as a function of composition and from this data construct a preliminary phase diagram. Materials for and designs of crucibles will be evaluated to reduce or eliminate sticking of the grown crystal to the crucible. A two zone furnace will be used for Bridgman growth so that we will have more control over the temperature gradient at the melt-solid interface than would be possible with a single zone furnace. Using seeds cut from single crystals of PMN-PT we grow by the high temperature solution technique, seeded growth will be studied. Physical properties of crystals grown by the Bridgman technique will be measured for comparison with single crystals grown by other methods.

FOSTER-MILLER, INC.
350 Second Ave.
Waltham, MA 02154
Phone:
PI:
Topic#:
(617) 684-4183
Mr. Ronald G. Roy
NAVY 97-108
Title:DOPED PSN.91-PT.09 ELECTROSTRICTIVE SINGLE CRYSTALS
Abstract:Requirements for high quality electrostrictive single crystals continue to be important because the polycrystalline PSN-PT materials have a lower coupling coefficient . Single crystal PSN-PT is an attractive transducer material because of its very high energy density and its capacity to undergo large electrostrictive strains. Foster-Miller has conceived of an innovative approach to grow PSN.91- PT.09 single crystal compositions, uniformly doped, large diameter PSN-PT single crystals either by itself or encapsulated in a porous single crystal sapphire skeleton. Our processing approach eliminates the following problems - small crystal size, high defect structure and cracking, high >42% PT compositions associated with limitations of the current state of the art crystal growth processes. Additionally, our "sapphire/PSN-PT composite" will have a high fracture toughness, thermal shock resistance, and light weight without much reduction in the PSN-PT electrostrictive properties. Foster-Miller's process has the capability of growing single crystals at relatively low temperatures not possible with current crystal growth processes. Also, being a isothermal constant temperature process, it will promote uniform distribution of dopants and constant PT concentration levels. Our approach will be an enabling technology for producing low cost, high efficiency, high strength electrostrictive single crystals that are stable at high temperatures. The process is versatile and has the potential to produce high quality piezoelectric and electrostrictive single crystal materials of other desired compositions. The Phase I program will involve the growth of PSN-PT single crystal specimens and characterization including X-ray diffraction, dielectric and piezoelectric measurements. The Phase I team includes Penn State University as a subcontractor who will evaluate these materials. Foster-Miller's process has the capability of growing single crystals at relatively low temperatures not possible with current crystal growth processes. Also, being a isothermal constant temperature process, it will promote uniform distribution of dopan The Phase I program will involve the growth of PSN-PT single crystal specimens and characterization including X-ray diffraction, dielectric and piezoelectric measurements. The Phase I team includes Penn State University as a subcontractor who will evaluat

LASERGENICS CORP.
6830 Via Del Oro, Ste. 103
San Jose, CA 95119
Phone:
PI:
Topic#:
(408) 363-9791
Dr. Sandor Erdei
NAVY 97-108
Title:Growth of Large Solid-Solution Piezoelectric Crystals by the BSFT Technique
Abstract: High performance transducers are not presently available using today's ceramic piezoelectric materials. The lead based complex oxides and their possible solid-solution systems have large dielectric constants, large piezoelectric strain coefficients and high longitudinal coupling constants. But these constants are compositionally dependent. Much more efficient transducers are possible if the lead based oxides can be grown in single crystals of sufficient size. Our proposal is to apply our new growth method, the BSFT technique, to this problem.

MATERIALS SYSTEMS, INC.
521 Great Rd.
LittletoN, MA 01460
Phone:
PI:
Topic#:
(508) 486-0404
Richard Gentilman/Kelley
NAVY 97-108
Title:Low Cost Manufacturing of Advanced Undersea Actuator Materials
Abstract: Single Crystal relaxor ferroelectric materials have been found to have significant electroacoustic property enhancements compared to their polycrystalline counterparts. Navy underwater acoustic projectors would benefit significantly from the high sound pressure levels and compactness that such transducer materials make possible. The key to their successful application in many Navy transducer systems is to achieve a low cost, high volume manufacturing process. In Phase I, Materials Systems Inc. plans to demonstrate the basic feasibility of recrystallizing net shape injection molded relaxor ceramic 1-3 preforms at a manufacturing viable production rate using two methods of seeded solid state conversion. In Phase II, the Phase I process work will be extended to refine the process parameters for high rate crystallization and to improve actuation performance. Single crystal SonoPanel« 1-3 composite transducers will be fabricated to demonstrate in water performance. The technology will be inserted into ongoing MSI 1-3 composite projector development and manufacturing programs under Phase III.

NZ APPLIED TECHNOLOGIES CORP.
8A Gill St.
Woburn, MA 01801
Phone:
PI:
Topic#:
(617) 935-2030
Dr. Jing Zhao
NAVY 97-108
Title:Novel Approach to the Growth of Single Crystalline Relaxors
Abstract: Single-crystals of PMN-PT and other excellent ferroelectric materials hold the promise of realizing the next generation of high performance piezoelectric transducers. Presently, bulk single crystal growth techniques are severely hampered for producing this type of materials, due to the difficulties caused by lead evaporation and the formation of the other phases. Epitaxial growth of very thick films is a favorable, alternative, approach to obtaining large area, high purity single-crystals. Such technical approach is currently the production method for large transparent single-crystalline ZnS and ZnSe crystals for IR window fabrication. NZ Applied Technologies has developed an innovative low cost process which is well suited to produce large single crystalline PMN-PT. This novel process has unique deposition capabilities of very low cost , large area , and very thick film capability. Based on our initial success in epitaxial growth of relative thick films (25¶m), in Phase I, we will optimize our process to grow large area single-crystalline PMN-PT disk of a few mm in thickness.

TRS CERAMICS, INC.
2820 E. College Avenue, Suite J
State College, PA 16801
Phone:
PI:
Topic#:
(814) 238-7485
Wesley Hackenberger
NAVY 97-108
Title:Single Crystal Growth of Relaxor Based Piezoelectric Materials for High Performance Transducers.
Abstract:This Small Business Innovation Research (SBIR) program will address the fabrication and testing of large relaxor based piexolectric single crystals (PMN:PT), to meet size requirements for various DOD transducer applications. Crystals of PMN:PT will be directly grown from the melt in encapsulated plantinum (Pt) crucibles using flux grown crystals as seeds. The expected cylinderical shape (<2 " diameter) will offer the potential of wafer technology as utilizing dopant strategies. TRS Ceramics has an exclusive license from the Pennsylvania State University for the commercial application of piezoelectric single crystals that include actuator and biomedical transducer.

LIGHTWORKS, LLC
8513 N 95th Street
Longmont, CO 80501
Phone:
PI:
Topic#:
(303) 651-3268
Paul J.M. Suni
NAVY 97-109
Title:Diode Laser Velocimeter for Flow Measurements
Abstract: Using non-traditional techniques, optical velocity measurements can be made at a cost far below that of traditional LDVs and coherent laser radar systems. Despite extreme simplicity, including the use of low power COTS diode lasers, we have demonstrated that the proposed devices have nearly quantum limited sensitivity. This has been demonstrated to be sufficient to easily and accurately measure the speed of single micron size aerosol particles. The sensor performance, coupled with extreme compactness and low cost, makes it ideally suited for US Navy water flow measurements near submerged structures, such as propeller blades. The operating principle of the basic sensor is different from traditional LDV systems, in that radial, rather than transverse, velocities are measured. This difference only implies that the sensor look angles need to be changed. Furthermore, it appears feasible to configure the proposed sensors such that transverse measurements are made. If this proves successful, there is no difference at all in the two sensor types. We propose to demonstrate in Phase I the applicability of these sensors to vector velocity recovery in water flows. We will also build a waterproof prototype unit for testing by the U S Navy.

METROLASER, INC.
18006 Skypark Circle #108
Irvine, CA 92614
Phone:
PI:
Topic#:
(714) 553-0688
Cecil F. Hess
NAVY 97-109
Title:Two-component, frequency shifted LDV system for underwater applications
Abstract: We propose to develop a compact, robust, and low cost diode laser-based Doppler velocimeter system capable of simultaneously measuring two velocity components with frequency shifting for resolving flow directional ambiguity. In addition to being compact, the system will require low power consumption leading to the ability of implementing multiple battery-operated probes within a constrained volume. These attributes will be possible due to an innovative frequency shifting strategy that can be implemented with low speed electronics without the detriment associated with the RF radiation of acousto-optic modulators. Furthermore, the shifted Doppler signal will also be low speed thus optimizing signal/noise of the photodetector and associated electronics.The Phase I work will consist of system modeling, design, and construction and experimental verification in a small water tank. We plan to deliver a working prototype to the Navy for testing in their water tunnel facility. Phase II will produce a complete system including signal processing electronics which should be of significant value to the Navy program.

NAL RESEARCH
14318 Montverd Court
Centreville, VA 20121
Phone:
PI:
Topic#:
(703) 803-1418
Ngoc Hoang, PhD
NAVY 97-109
Title:Development of Velocity Sensor Utilizing Laser Diodes and Avalanche Photodiodes
Abstract: The system consists of two laser diodes of either the same or different wavelengths in the visible range. Both laser diodes are driven by a single current oscillator at a pre-determined base frequency. This base frequency is divided into two electrical pulse trains at exactly half the original base frequency by a two-stage shift register. One of these electrical pulse trains is applied to the first laser diode to trigger a laser pulse. At a short time later, a second electrical pulse train is applied to the second laser diode to initiate a second laser pulse. These laser pulses are subsequently focused into two measurement volumes by collimator optics, mirrors and focusing lens and resulted in two orthogonal sequentially pulsed fringe systems. The phase different between the first and second laser pulse fringe system can be accurately determined. A receiver system consisted of a single avalanche photodiode and focusing lens is used to detected the scattered Doppler signals from both measurement volumes. The sampling rate of the avalanche photodiode is synchronized with the current oscillator base frequency. Doppler signal from each measurement volume can be de-coupled, from the signal sampled by the photodiode, to obtained two-dimensional velocity information of a particle.

BLATEK, INC.
2820 E. College Avenue, Suite F
State College, PA 16801
Phone:
PI:
Topic#:
(814) 231-2085
Timothy Ritter
NAVY 97-110
Title:1-3 Single Crystal Composites for Broadband Ultrasonic Imaging Transducers
Abstract: This SBIR program will address the modelling, fabrication, and testing of single crystal composite transducers. Comprised of single crystal relaxor-PT piezoelectrics, both single element and array configurations will be investigated for high performance medical ultrasonic imaging transducers. In collaboration with TRS Ceramics, Inc., single crystal relaxor PT piezoelectrics will be integrated into the transducer, providing ultra high electromechanical coupling (up to 92%), broad bandwidth, high sensitivity, and decreased impulse response for improved axial resolution. Using a one dimensional model, bandwidths of up to 130% have been realized. A direct comparison between an optimally designed single crystal relaxor PT composite transducer and an optimally designed PZT composite transducer will be made to demonstrate this performance enhancement. This Phase I research will provide a basis for further transducer optimization and cost effective manufacturing of an optimally matched broadband array in Phase II. A Phase I option for modelling, construction, and testing of an array element will enhance the development of the Phase II proposal.

TETRAD CORP.
357 Inverness Dr. South
Englewood, CO 80112
Phone:
PI:
Topic#:
(303) 754-2315
Dr. Clyde G. Oakley
NAVY 97-110
Title:Single Crystal Relaxor-Based Ferroelectrics Offer a Quantum
Abstract: The goal of this program is to apply recent advancements in the growth of piezoelectric single crystal materials to build ultrasound transducers with very broad bandwidth, which can improve and simplify ultrasound imaging for combat casualty care. Relaxor-based ferroelectric materials of PZN-PT and PMN-PT have been shown to have coupling factors for some modes of over 90%. Transducer modeling shows that these properties can theoretically lead to transducers with exceptionally wide bandwidth (over 120%). The set of procedures which would be useful for external imaging during triage in a combat casualty care would take up to three transducers of standard construction ranging from 3.5 MHZ to 7.5 MHZ in center frequency. If a transducer with 120% bandwidth can be constructed, that single transducer can perform all of those imaging functions. Tetrad will work with TRS Ceramics and Crystal Associates who are the leading U.S. manufacturers of high-coupling single crystal material. In Phase I, methods for surface preparation, grinding, metalizing for electrode attachment, bonding of polymers, and processes for building 2-2 and 1-3 composite materials will be investigated. Samples of these materials will be used to build subapertures of medical imaging arrays demonstrating broad bandwidth in the water tank. The goals for Phase II will be to use these designs and production methods to develop complete 1-D and 1.5-D ultrasound imaging arrays and to show images covering the bandwidth achieved.

DIGITAL OPTICS CORP.
5900 Northwoods Parkway, Suite J
Charlotte, NC 28269
Phone:
PI:
Topic#:
(704) 599-9191
Dr. Eric Johnson
NAVY 97-111
Title:Self-Assembled Monolayer Based Methods for Fabrication of Diffractive Optical Elements
Abstract: This SBIR Phase I project builds upon Digital Optics Corporation's experience in the design, fabrication and commercialization of diffractive and micro-optics and the experience of Dr. George Whitesides of Harvard University to provide an innovative approach to the fabrication of diffractive and micro-optical components using self-assembled monolayers (SAM's). The proposed approach makes use of SAM's for the inexpensive fabrication of submicron diffractive structures on both flat and curved surfaces. Many exciting and useful micro-optical elements exist that cannot be efficiently manufactured in production quantities with conventional methods, if they can be fabricated at all. The use of SAM-based methods will provide additional opportunities for cost-efficient fabrication of both existing and new types of micro-optics. This Phase I effort will demonstrate the application of SAM's to the fabrication of micro-optical elements. Both analytical and experimental work will be performed to verify the objectives of the proposed project.

EIKOS, L.L.C.
89 Richmond St.
Raynham, MA 02767
Phone:
PI:
Topic#:
(508) 880-0007
Dr. Paul Winsor
NAVY 97-111
Title:High Performance Capacitor Dielectrics From Self Assembled Monolayer Based Fabrication
Abstract: Eikos will develop high performance capacitor dielectrics based on self-assembled monolayer buildup processing. This approach to building a capacitor dielectric will include incorporation of a graft conducting polymer as at least one of the electrodes, resulting in superior stored energy density with low dissipation factor at voltage ranges (5V to 500V) currently dominated by inefficient electrolytic capacitors. This processing technique will allow for capacitor fabrication directly onto circuit boards as well as fabrication of discrete rolled capacitors. Adoption of monolayer based dielectric assembly opens the opportunity for rapid development of new polymer dielectrics currently impeded by the lengthy and expensive process development required for traditional polymer dielectrics.

APTIMA, INC.
25 Mall Road, Suite 300
Burlington, MA 01803
Phone:
PI:
Topic#:
(617) 270-0613
Dr. Jean MacMillan
NAVY 97-112
Title:COMPUTER-BASED ADAPTIVE TUTOR FOR ADULT READING COMPREHENSION
Abstract:We propose to develop a computer-based adaptive tutor to improve the reading comprehension skills of adult readers. Our instructional strategy is based on the Reciprocal Teaching method, demonstrated to improve reading comprehension. The "scaffolded" Reciprocal Teaching method demonstrates strategies for full reading comprehension, then gradually withdraws instruction, encouraging learners to practice and gain comprehension on their own. The challenge for this project is to capture the spirit and techniques of Reciprocal Teaching in a computer-based tutor. We focus on three components of advanced reading: reading to understand key concepts, reading to evaluate the legitimacy of ideas, and reading to apply ideas and information to new circumstances. We believe that the learner needs both generic instruction in reading-comprehension strategies and content-specific instruction that shows how to apply those strategies to a specific text. We also propose note-taking as a valuable tool for increasing reading comprehension. The adaptive tutor will use these three instructional strategies to improve reading understanding, evaluation, and application skills. The products of Phase I will be a tutoring framework, adaptation principles for creating individual learning paths, a prototype that demonstrates the concept, a system architecture for Phase II, and a plan for evaluating the effectiveness of the tutor.

INTELLIGENT AUTOMATION, INC.
2 Research Place, Suite 202
Rockville, MD 20850
Phone:
PI:
Topic#:
(301) 590-3155
Jacqueline Haynes
NAVY 97-112
Title:CBT To Enhance Adult Literacy Through In-Depth Assessments and Automated Guiance
Abstract:In response to this Phase 1 SBIR solicitation, Intelligent Automation, Inc. (IAI) proposes to research a new technological approach for enhancing adult literacy. Our objective is to design and prototype a CBT system that integrates pedagogically sound instructional methods with automated assessment technologies to accommodate the special needs of the adult literacy students. Out technical objectives represent a development approach between simplistic CBT and traditional ITS. This approach does not require the extensive effort and impracticalities of student modeling that are required in traditional ITS. Instead, our approach enhances a (simplistic) CBT environment with robust, in-depth assessments and automated guidance techniques. IAI proposes to: (1) enhance a CBT environment with multiple, automated, in-depth assessments of student progress in vocabulary, reading comprehension, fluency, and accuracy; (2) establish a reading competence "ladder" of the materials in the CBT curriculum; and (3) build an automated guidance tool to match individual students with the materials that best suit their current reading competence and their "zone of optimal learnability". Additionally, we propose to ease the authoring effort by integrating an authoring tool that automatically places new materials in the proper location within the "ladder-like" structure of the curriculum.

STOTTLER HENKE ASSOC., INC.
2016 Belle Monti Ave
Belmont, CA 94002
Phone:
PI:
Topic#:
(415) 655-7242
Richard H. Stottler
NAVY 97-112
Title:An Intelligent Tutoring System for Adult Literacy Enhancement
Abstract: This proposal presents the opportunity to apply our existing experience, research, and technology in Intelligent Tutoring Systems (ITSs) and pedagogical techniques to the adult literacy problem. ITSs assess, model, diagnose, and automatically develop a tailored course of remedial instruction for individuals. ITSs emphasize custom instruction tailored to the particular individual. Our approach includes theoretical, pedagogical, empirical, and practical philosophies. We emphasize the use of real-world, adult-applicable reading material, chosen for its appropriate reading difficulty and relevancy to the end user. This is facilitated by the capability of our ITS to receive a document (which includes multi-media) from Naval personnel (non-programmers) and automatically extract the information from it for reading practice, exercises, and assessment. In Phase I, we will develop a prototype (ITS) for adult literacy enhancement for testing and evaluation. The use of an ITS for reading enhancement will achieve many of the same benefits as one-on-one instruction. When ITSs are enhanced with interactive multimedia, students demonstrate greater motivation during training and greater retention of course material. Thus, an ITS provides instruction that is at once cost-effective and potentially superior to traditional reading teaching methods. We have used this ITS approach with much success in other training domains.

IMAGECORP, INC.
9104 Mistwood Dr.
Potomac, MD 20854
Phone:
PI:
Topic#:
(301) 294-6486
Qinfen Zheng
NAVY 97-113
Title:An Unattended System for Monitoring Human Combatant
Abstract: Unattended surveillance of human combatants in urban environments is an important and challenging task in law enforcement and peace keeping missions. Traditional approaches, based either on temporal difference or pattern recognition using still frames, are inadequate. As a technology transfer effort based on prior research results of leading scientists, ImageCorp proposes in this Phase I effort to design a site model supported, PC-based surveillance system for automatic detection, tracking and monitoring of human combatants in urban environments. Using a site model, information from multiple sensors and platforms, as well as prior knowledge such as locations of sensitive areas and typical combatant activities can be employed in image exploitation. Further, the history of moving targets can be effectively represented, enabling the tracking of targets even under concealment or cessation of motion. The proposed system will fuse information collected from distributed acoustic sensors, as well as wide angle and zoom infrared and visual cameras. Solutions to issues such as 2-D site model construction, sensor stabilization and image mosaicking, moving object detection, human recognition, tracking, action understanding, and data fusion are proposed and will be investigated during the proposed Phase I effort.

ATLANTIC AEROSPACE ELECTRONICS CORP.
470 Totten Pond Rd
Waltham, MA 02154
Phone:
PI:
Topic#:
(617) 890-4200
Kenneth Ellis
NAVY 97-114
Title:Integrated Color Coding and Monochrome Multi-Spectral Fusion
Abstract:The proposed effort is aimed at the development and demonstration of the feasibility of a new integrated color coding and a contrast-based monochromatic fusion process. We will investigate two methods for color coding that utilize the monochrome fused image. Each of the color coding methods will provide consistency of color presentation as a function of daytime, background variability and illumination conditions. The new monochrome fusion process will maximize the information content in the combined image, while retaining visual clues that are essential for navigation/piloting tasks. The Phase I development will focus on the fusion of imagery from image intensifiers and forward looking infrared sensors currently used by the U.S. Navy for navigation and targeting. The approach is easily extendible to more than two bands. To be effective, the fused imagery will maintain relationships that correspond to natural (daytime) vision of the same features. Under stress the human operator is liable to revert to his most natural interpretation and act on it. Thus any image transformation which distorts such relationships, even if it can be learned by the user and responded correctly in the lab or during training, may be less effective. Since the overall objective of the effort is a real time demonstration, we will focus during the Phase I program on practical and computationally efficient image processing components. The real-time implementation of the developed process using commercially off the shelf (COTS) digital signal processors (DSPs) will be deferred to the Phase II effort Since the overall objective of the effort is a real time demonstration, we will focus during the Phase I program on practical and computationally efficient image processing components. The real-time implementation of the developed process using commercially off the shelf (COTS) digital signal processors (DSPs) will be deferred to the Phase II effort.

TERAOPS
1051 Cragmont Ave
Berkely, CA 94708
Phone:
PI:
Topic#:
(510) 548-3514
Tibor Kozek
NAVY 97-114
Title:Analogic CNN Engine for Muli-Spectral Fusion
Abstract: TeraOps Corporation proposes to develop a suite of algorithmic techniques and corresponding hardware implementation based on the powerful CNN technology to address Navy requirements for multi-band image fusion in real-time. TeraOps will exploit the unique architecture of the CNN supercomputer-on-a-chip to implement spatial-temporal image processing algorithms for the fusion of multi-band sensory data to be used in advanced targeting systems. These algorithms will draw upon studies of biological image processing systems as well as on CNN models for color constancy and color visualization developed earlier by TearOps researchers. CNN is a massively parallel locally interconnected dynamic array computer capable of performing more than 10 to the 12 operations per second which allows it to perform image processing operations three orders of magnitude faster than conventional digital signal processors. Its very high processing speed is essential in executing computationally intensive image processing operations in real-time at high resolutions. The CNN image processing package including associated hardware will be small enough to fit in the limited space of an image processing pod and will consume very little power due to its highly efficient VLSI implementation. Thus, the proposed work combines the efficiency and speed of the hardware implementation and the algorithmic power of CNN technology to solve the real-time image fusion problem.

IMETRIX, INC.
P.O. Box 152
Cataumet, MA 02534
Phone:
PI:
Topic#:
(508) 564-6460
Ms. Barbara Fletcher
NAVY 97-115
Title:Stand Alone ROV Trainer
Abstract: A remotely operated vehicle (ROV) pilot is faced with a complex task, with few tools available for training and mission planning. Training is generally "on-the job", and is often limited by the availability and high cost of deploying equipment.

CAMBER CORP.
635 Discovery Dr.
Huntsville, AL 35806
Phone:
PI:
Topic#:
(703) 866-5404
Yi Bian
NAVY 97-116
Title:Hard Target Penetrator End-Game Guidance
Abstract:Precision strike weapons have been proved repeatedly to be able to provide substantial tactical advantages. Much attention in the past has been focused on improving the strike position accuracy. To penetrate a consolidated hard target, however, the missile velocity and impact angle also plays a significant role. This raises the requirement for the capability to precisely control the missile attitude. Traditionally, missile attitude is determined by use of inertial systems. High accuracy inertial systems, however, are expensive and all inertial systems have the drawback that their errors accumulate over time. Camber Corporation proposes to use kinematic GPS technology to develop the capability of attitude determination. The GPS system has the advantage of being able to provide high accuracy at a fraction of the unit cost compared to the inertial system. In contrast to the inertial system, attitude determination using GPS is drift free - its error is bonded and remains unchanged over time. Kinematic GPS will not only increase the attitude control accuracy; it will also extend its application to weapon systems that are prohibited from using the inertial system due to cost constraint. Camber Corporation proposes to use kinematic GPS technology to develop the capability of attitude determination. The GPS system has the advantage of being able to provide high accuracy at a fraction of the unit cost compared to the inertial system. In contrast to the inertial system, attitude determination using GPS is drift free - its error is bonded and remains unchanged over time. Kinematic GPS will not only increase the attitude control accuracy; it will also extend its application to weapon systems that are prohibited from using the inertial system due to cost constraint.

MAYFLOWER COMMUNICATIONS COMP., INC.
900 Middlesex Turnpike, Building 8
Billerica, MA 01821
Phone:
PI:
Topic#:
(508) 436-9600
Triveni N. Upadhyay
NAVY 97-117
Title:Virtual Laser- Kinematic Relative GPS-Based Navigation and Covert Communication (KREGNACC) System for Terminal Guidance
Abstract:The U.S. Navy has identified a need to develop a passive precision target location and terminal guidance from Spotter to Projectile capability which can deliver 1 meter CEP relative navigation-to-the-target accuracy. The targeting sensor, referred to as Virtual Laser, should be able to range to a moving target and provide the target coordinates in real-time to a projectile/vehicle. The objective of this SBIR Phase I Study is to analyze the feasibility of the proposed GPS/INS-based targeting, relative navigation and communication data link system which can meet the accuracy goal, be packaged in a small size, and produced at low-cost, thereby eliminating the requirements of a terminal seeker in most precision guided munition applications. The Phase I study will analyze various sensor-target scenarios, model their error sources and evaluate their relative navigation performance using Mayflower novel dual-stage carrier phase processing algorithm and inertial error calibration techniques. An important focus of the Phase I research is to demonstrate the feasibility of the proposed data link to provide the communications connectivity. The Phase II effort will develop a brassboard data link, integrate it with a miniature GPS/INS package, and validate the Virtual Laser concept with a hardware-in-the-loop simulation incorporating the projectile GN&C algorithms.

NAVSYS CORP.
14960 Woodcarver Rd.
Colorado Springs, CO 80921
Phone:
PI:
Topic#:
(719) 481-4877
Alison K. Brown PhD
NAVY 97-117
Title:SPOTter/Sensor (SPOTS) Targeting system using relative kinematic GPS processing
Abstract: The purpose of this SBIR is to demonstrate precision targeting to enable terminal guidance of munitions from Spotter-to-Shooter, in a "Virtual Laser" mode of operation. This requires the Spotter to be able to precisely determine the target coordinates (and munition aim point) in 3-D coordinates, to allow for automatic call for fire and automatic target handoff to the weapon system. To support a targeting accuracy of 1 meter at a range of 1 km from the target, the SPOTS system must be able to determine range to the target to an accuracy of 1 meter, and bearing to an accuracy of 1 mrad. In the proposed system architecture an innovative "relative kinematic" algorithm is described. Simulation results have shown that this can support 1 mrad attitude accuracy in a man-portable targeting system by optimally integrating data from a GPS receiver and Micro-Electro- Mechanical (MEM) inertial measurement unit (IMU). Under this Phase I contract, we will develop and demonstrate the attitude accuracy possible with the relative kinematic GPS/inertial algorithms using in-house test equipment. Under Phase II, a man-portable SPOTS unit will be fielded and tested.

AMERICAN ELECTRONICS, INC.
8229 Boone Blvd, Suite 200
Vienna, VA 22182
Phone:
PI:
Topic#:
(703) 883-0506
Dr. Joseph T. Siewick
NAVY 97-118
Title:Compact Sensors and Guidance for Mid-Caliber Naval Guns
Abstract: One of the most important applications of mid-caliber (5-inch) Naval guns is in meeting the defensive requirements of the Close-In-Weapon-System (CIWS). The function of the CIWS is to engage and defeat aircraft and cruise missile threats that have avoided or survived the extended area defenses. AMELEX offers to explore combining a guidance and control/divert system with a radar or IR seeker in the five-inch munition to provide a hit probability approaching 100%. PIN photodetector's active area. PIN electroabsorptive devices are attractive for military applications because the technology is mature and the costs are low. A preliminary operational energy estimate of an electroabsorpative PIN diode structure is low, essentially that of charging a capacitor of comparable dimensions. This energy is recoverable from the capacitor structure of a reverse biased PIN. The power required to sustain the emissivity variation is equal to the leakage currents through and voltage across the reverse biased PIN structure, and this too seems relatively low compared to the power of several alternative methods.

INTELLIGENT AUTOMATION, INC.
2 Research Place, Suite 202
Rockville, MD 20850
Phone:
PI:
Topic#:
(301) 590-3155
Chiman Kwan
NAVY 97-119
Title:Real Time Infrared Thermal Signature Detection Using Neural Networks
Abstract: Thermal imaging is a simple and useful technique for post mission analysis. Combining with health monitoring and fault diagnostic techniques, the method can reduce false alarms and improve the diagnostic capability of naval surface, subsurface, and air assets. It can also be used for detecting corrosion, erosion, and hot spots due to bearing degradation. However, there is a fundamental problem in thermal imaging. There is too much data and it must be processed in real time. There is a technology, often used in other domains, to reduce the amount of data in the image to an alternative set of data which represents the most important features in the image. This technology is called Principal Component Analysis (PCA). Using a dynamic PCA, the amount of data which would need to be searched for the target of interest can be greatly reduced. The reason PCAs have not been used for this application is that dynamically computing the Principal Components from an image was too time consuming. Each component had to be computed independently - first the first component, then the second component, then the third component, etc. Since the computation of each component is itself an iterative process, real-time results could not be achieved. Intelligent Automation, Incorporated (IAI) has solved this problem. With our approach, we will be able to compute the Principal Components of an image in real-time. Our innovation allows us to compute all the Principal Components in parallel, with all values converging at the same rate, so that final values are achieved for all components simultaneously instead of serially. This allows us to perform dynamic PCA in real-time and therefore apply this powerful technology to high speed thermal image processing. Intelligent Automation, Incorporated (IAI) has solved this problem. With our approach, we will be able to compute the Principal Components of an image in real-time. Our innovation allows us to compute all the Principal Components in parallel, with all values converging at the same rate, so that final values are achieved for all components simultaneously instead of serially. This allows us to perform dynamic PCA in real-time and therefore apply this powerful technology to high speed thermal image processing. Intelligent Automation, Incorporated (IAI) has solved this problem. With our approach, we will be able to compute the Principal Components of an image in real-time.

THRESHOLDS UNLIMITED, INC.
Box 425, 2113 Sunnyside Road
Findley Lake, NY 14736
Phone:
PI:
Topic#:
(716) 769-7781
Karen A. Weinert
NAVY 97-119
Title:Thermographic Technology Development for Real-Time Fault Detection
Abstract:High resolution infrared (IR) thermal imaging technologies have a proven ability to detect faults and pre-fault conditions in machinery and structures. Through many hours of video and digital analysis and documentation, Thresholds Unlimited, Inc. has established that observation and analysis of thermal patterns (in real time) can provide go/no-go checks and can simplify the condition monitoring process while providing diagnosis of machinery and structural members while the vehicle systems are in operation. This technique holds great promise for reducing false fault identifications and improving condition monitoring activities throughout the Navy. The cost of maintaining aging fleets of air, sea, and land vehicles can be reduced using thermography and other conditions based monitoring techniques. This process will significantly reduce personnel risk and costs with aging systems.

AMERICAN GNC CORP.
9131 Mason Avenue
Chatsworth, CA 91311
Phone:
PI:
Topic#:
(818) 407-0092
Ching-Fang Lin
NAVY 97-120
Title:Fuzzy Neural Control Design Software for Multiple Effector Control Systems
Abstract: In this Phase I project, a fuzzy neural control design software tool will be developed with the Genetic Algorithms (GAs) based adaptive fuzzy neural control method to enhance the performance and autonomous control ability of multiple effector control systems. First, a fuzzy logic control algorithm will be developed. Second, the GAs will be used to form a self-learning and self-tuning mechanism to tune the membership parameters and modify the rules. A fuzzy neural algorithm will also be developed. With the GAs based adaptive fuzzy neural control system the performance of the multiple effector control systems will be improved significantly in the presence of disturbances and uncertainties. Finally, a software toolkit will be developed and commercialized for the design, analysis and demonstration of genetic algorithms based adaptive fuzzy logic control systems. The software will be developed using the software engineering, object-oriented and Windows programming techniques. It provides a graphical user-friendly interface and design and analysis functions for autonomous intelligent control. In order to demonstrate the effectiveness of the toolkit, it will be used to design an autopilot for a tactical ballistic missile. Then, nonlinear 6 DOF simulation will be conducted to evaluate the design.

BARRON ASSOC., INC.
3046A Berkmar Drive
Charlottesville, VA 22901
Phone:
PI:
Topic#:
(804) 973-1215
David G. Ward
NAVY 97-120
Title:Intelligent Reconfigurable Control for Systems with Multiple Effectors
Abstract: Many modern systems rely on multiple innovative actuators and effectors to improve performance, versatility, and survivability. In systems where several actuators or actuator combinations are capable of affecting the behavior of a single controlled varaible, an opportunity exists to incorporate non-traditional features in the control law, including post-failure reconfiguration and optimization of high-level system functions (e.g., overall efficiency). Often, one requires an intelligent nonlinear control algorithm to achieve these benefits. This proposal describes such an algorithm based on neural network system modeling, robust on-line system identification, and receding-horizon optimal control. This algorithm has been evaluated favorably in piloted simulations and F-16 flight tests (including simulated impairments), and it is currently being applied to a tailless aircraft having over 14 independent effectors. The proposed Phase I research will (1) develop a prototype control system design toolkit based on the algorithm, (2) extend these algorithms with a control allocation module that provides desired closed-loop performance while achieving higher-level mission objectives such as reduced drag or low observability, and (3) demonstrate the algorithms and the prototype software tool on a complex system application of interest to the Navy.

SCIENTIFIC SYSTEMS CO., INC.
500 West Cummings Park Suite 300
Woburn, MA 01801
Phone:
PI:
Topic#:
(617) 933-5355
Raman K. Mehra/M. Gopinat
NAVY 97-120
Title:Intelligent Control Algorithms and PC-Based Software Tool Development for Multiple Effector Control Systems
Abstract: The main objective of the proposed work is to develop systematic control design procedures and simulation modules for complex uncertain multiple-input multiple-output (MIMO) systems. Scientific Systems proposes to integrate these modules within a highly flexible and user-friendly Intelligent Control Design Tool (ICDT) for Matlab that will include the design of System Identification (SI) and Model Predictive Control (MPC)-based adaptive control algorithms, and intelligent supervisory control modules based on the system response and fuzzy logic. MPC framework will enable the designer to develop efficient control algorithms for both linear and nonlinear models in the case of hard constraints on control inputs, system outputs, and states. The presence of system nonlinearities and uncertainties will be addressed by both the extensions of several existing identification techniques to nonlinear models, and by the development of MPC-based neural network identification and control algorithms. To preserve robustness under large perturbations, uncertainties, and sensor and actuator failures, the suggested control system will have substantial reconfiguration capabilities introduced by supervisory control based on on-line adaptation, fuzzy rules and Fault Detection and Isolation (FDI) mechanisms. The feasibility of the intelligent MPC algorithms will be tested through simulations of Eagle Eye UAV, or other Uninhabited Combat Air Vehicle (UCAV) model recommended by the Navy. Prof. K.S. Narendra of Yale University will provide technical consulting support.

ACCURATE AUTOMATION CORP.
7001 Shallowford Rd.
Chattanooga, TN 37421
Phone:
PI:
Topic#:
(423) 894-4646
RICHARD AKITA & ALIANNA M
NAVY 97-121
Title:BIOLOGICALLY INSPIRED PROCESSOR FOR ALL-SOURCE DATA ASSOCIATION AND FUSION
Abstract:This project will develop improved sensor fusion of underwater surveillance and fire control related ]data based upon biologically inspired data association and sensor fusion techniques. In this _proposed SBIR, AAC will examine under-sea surveillance requirements for providing contact data hassociation for two or more contacts in the littoral environment. We will analyze biologically-inspired [techniques to perform all source data assimilation, fusion and correlation, and develop an darchitecture that will easily integrate with the Navy's Neurally Inspired Contact Estimation (NICE) \component. We will also develop a neural network-based system design inspired by biological fphenomenon, to be used in the all-source real-time data assimilation, fusion and correlation process; \develop a Phase II plan for the development of the Biologically Motivated Neural Processing cArchitectures for All-Source Data Association and Fusion; provide a test plan and deliver a final .report. RWe propose to develop the advanced Biologically Motivated Neural Processor (BMNP).ein a prototype COTS workstation. In this SBIR, AAC will develop the workstation architecture and the \capability to incorporate a number of biologic sensor fusion models. This work will lay the ffoundation for a Phase II program in which AAC will perform the development of the "fully functional" prototype system.

DECISION DYNAMICS, INC.
4600 East West Highway, Suite 4
Bethesda, MD 20814
Phone:
PI:
Topic#:
(301) 657-8500
Louis Edward Alfeld, ScD.
NAVY 97-122
Title:Affordability Measurement and Prediction Technologies
Abstract:This proposal builds upon work currently underway for the Office of Naval Research's Acquisition Reform Office. This body of work known as SNAP (Simulating New Acquisition Processes), consists of five interconnected simulation models that make up a "virtual acquisition process." The models, developed using the system dynamics methodology, can quantify the long-term tradeoffs among cost, performance and schedule measures. SNAP output includes key decision variables allowing program managers to test the consequences of alternative "what-if?" scenarios and to place high confidence in the resulting priorities for affordability actions. Although SNAP development is well underway, SNAP models lack funding to incorporate an essential feature -- Evolutionary Algorithms (EAs). EAs mimic biological evolution by repeatedly "mutating" selected parameter values and simulating the model to produce a generation of project solutions. During simulation the EA automatically evaluates tradeoffs among cost, schedule and performance variables, using feedback to alter both tasks and resources in a search for the most effective result. The addition of EAs to SNAP will result in an incredibly advanced affordability prediction tool that will not only correctly predict the total cost of ownership for any system but will also enable program managers to evolve better and better program plans with CAIV (Cost as an Independent Variable) guidelines.

GLOBAL TECHNOLOGY CONNECTION, INC.
2690 Spencers Trace
Marietta, GA 30062
Phone:
PI:
Topic#:
(770) 971-7072
Dr. A.B. Thakker, P.E.
NAVY 97-122
Title:Affordability Measurement and Prediction Technologies
Abstract: A «roadmap for affordability« will be developed in Phase I based on Robust Design Simulaton(RDS) which will be applied in Phase II to address affordability design tradeoffs for propulsion system technologies in V/STOL aircraft. The V-22 tilt rotor aircraft with the T-406 engine will be used as the baseline V/STOL aircraft for affordability measurement verification and validation of the RDS. The proposed research will serve as the Current Development linkage between the current ONR initial Research and Theoretical Development Program, being conducted by universities and the Verification and Validation effort involving industry and Navy project offices. The integration of synthesis/sizing models with life cycle cost (LCC) analysis for V/STOL aircraft will be accomplished in Phase II. Historical databases in the synthesis/sizing models and LCC analysis will be replaced with data generated from physics-based disciplinary models and activity and process-based cost models, respectively. Affordability design tradeoffs for propulsion system technologies applied to the V-22/T406 baseline will be assessed using the RDS as a prediction technology in Phase II.

PROMETHEUS, INC.
103 Mansfield Street
Sharon, MA 02067
Phone:
PI:
Topic#:
(401) 849-5389
James S. Byrnes
NAVY 97-122
Title:Affordability Modeling in an Uncertain Environment
Abstract: We propose to create a technology to improve Naval acquisition planning in a partially known environment, thereby reducing the negative impact of uncertainty, while simultaneously incorporating affordability as a fundamental constraint. Our decision support system will be flexible in its assumptions to facilitate replanning in response to changes faced by planners and warfare systems architects. It will contain a genetic algorithm based optimization module, to enable the efficient determination of near optimal decisions despite enormous numbers of alternatives and numerous complications involved in their evaluation. This planning support tool will be based on our theory of dependency modeling, which we have successfully applied to Naval combat systems assessment and Air Force aircraft allocation problems. The proposed Phase I research will enable the adaptation of our MAAP technology, developed under Air Force sponsorship, to assist in making technological decisions that impact the affordability and performance of current and projected Naval systems. This will form the foundation for a Phase II decision aid tool that will allow acquisition planners, be they Navy, other military, or commercial, to evaluate and compare candidate strategies for the optimal and affordable allocation of assets to varied and often uncertain system requirements.

SOFTWARE PRODUCTIVITY SOLUTIONS, INC.
122 4th Ave.
Indialantic, FL 32903
Phone:
PI:
Topic#:
(407) 984-3370
Jeffrey A. Heimberger
NAVY 97-122
Title:Project Stoddert, A System Dynamics Model of Affordability Using Utility Theory
Abstract:In a time of decreasing defense budgets, the long-term affordability of different Navy warfighting and support systems is an increasingly important consideration when deciding between competing systems, and is also increasingly more difficult to objectively measure. SPS proposes an innovative approach for developing a model that measures the affordability of existing systems and predicts the affordability of alternative systems. Our proposed Project Stoddert honors Mr. Benjamin Stoddert, the first Secretary of the Navy. Our approach will establish the theoretical bases for developing executable models to measure the affordability of complex weapon systems. We will employ a unique combination of system dynamics and utility theory to capitalize on the strengths of these two powerful decision analysis techniques. The key innovative aspects of our approach are: (1) using a system dynamics model which can employ qualitative data as well as quantitative data to measure affordability, and (2) applying utility theory to provide users a formal method of determining their inputs to the model. This approach has the best chance for success and for advancing the state-of-the-art in affordability measurement and prediction because it uses two established decision analysis techniques to attack the most important aspects of the affordability measurement and prediction problem.

CAPE COD RESEARCH, INC.
19 Research Rd.
East Falmouth, MA 02536
Phone:
PI:
Topic#:
(508) 540-4400
Francis L. Keohan
NAVY 97-124
Title:New Multi-Functional Vapor Phase Corrosion Inhibitors
Abstract:A new family of surface-active organic compounds is proposed for formulating multi-purpose vapor phase corrosion inhibitors (VCI's). The proposed research explores the feasibility of applying state-of-the-art surface science with the concepts of molecular simulation and molecular self assembly to produce a new class of corrosion inhibitors. The ultimate objective is to develop a family of VCI's that readily volatilize at ambient temperature, pose little toxicological or environmental hazard, displace surface water from metallic substrates, effectively prevent the corrosion of ferrous and nonferrous metals and self-assemble into coherent coatings for long-term protection. In the proposed study the candidate precursor materials for these VCI's will be identified, chemically derivatized for improved volatility, the compatibility of different compounds predicted by computer simulation, and structure-property profiles determined. The ability of selected experimental VCI blends to inhibit the corrosion of ferrous and nonferrous metals in enclosed environments will be demonstrated. The anticorrosive properties will be measured by traditional accelerated tests such as salt spray exposure, enclosed humid environment exposure, and electrochemical impedance spectroscopy (EIS).

FAKESPACE, INC.
241 Polaris Ave.
Mountain View, CA 94043
Phone:
PI:
Topic#:
(415) 688-1940
Ian McDowall
NAVY 97-125
Title:A Multi-User Deployable Virtual Workbench
Abstract: Fakespace proposes to develop a feasible system for use in a Naval environment which permits two users to see stereo images on a virtual workbench simultaneously. NRL and other groups have implemented virtual workbenches which display 3D models on a table top. The proposed development effort will permit several users (initially two) to simultaneously view and interact with the model. The technical approach will build on expertise at both NRL and Fakespace. NRL's applications expertise and understanding of the Navy's needs will be essential to creating an effective solution. Insights gained by Fakespace in the development of the first two-user stereo system will permit a focusing of effort towards systems design issues which meet the Navy's specific objectives. The understanding of end user needs together with appropriate technology experience will enable Fakespace to synthesize an excellent solution. In addition to forming a foundation for work in later Phases, the systems design work accomplished as part of Phase I will impact the development of products for the CAD, medical, and display fields.

PHYSICAL SCIENCES, INC.
20 New England Business Center
Andover, MA 01810
Phone:
PI:
Topic#:
(508) 689-0003
Steven A. Africk
NAVY 97-126
Title:Structural Health Monitoring Using Fiber Optic Sensing
Abstract: A system for structural health monitoring of ships using fiber optic sensors will be developed. The baseline system to be investigated is a proprietary spread spectrum interrogation system under development by Lucent Technologies, which will support monitoring of strain, temperature, and potentially other parameters, continuously in space and time. Ideally, this system will be able to interrogate the intrinsic sensitivities of fiber to strain to measure mechanical strain and temperature. If greater sensitivity is required, Bragg grating reflectors will be integrated into the system. A test rig will be built to simulate hull and decking areas which are to be monitored by the system, and the potential performance of bare fibers, fibers with intrinsic Bragg grating sensors, and telemetry systems based on proprietary Lucent technology and variations on that technology, including wavelength multiplexing, will be tested with static and slowly varying structural strains. A system capable of meeting Navy requirements and which can be interfaced with other automated systems will be defined and a plan to demonstrate this system in Phase II will be developed.

SYSTEMS PLANNING & ANALYSIS, INC.
2000 N Beauregard St., Suite 400
Alexandria, VA 22311
Phone:
PI:
Topic#:
(703) 578-6332
Peter C. Chen, Ph.D.
NAVY 97-126
Title:Structural Health Monitoring Using Fiber Optic Sensing
Abstract: Systems Planning and Analysis, Inc. (SPA) proposes to develop an open architecture structural health monitoring system for naval ships based on fiber optic Bragg grating and digital telecommunications technologies. This dual-purpose system will allow for simultaneous sensing and transmission of existing analog data streams afloat (i.e., communications, fire control, resistance strain data, etc.) and digital strain data from fiber strain sensors distributed along multiple sensing fibers. Using wavelength division multiplexed sensors along each fiber path, structural strains of the primary hull and other substructures will be measured to provide real-time, on-line health monitoring of the vessel during operations. During the proposed effort, a prototype system will be built with a 2-sensor array of 4 sensors each, 2 transmission nodes, and a 100m data bus consisting of Mil-Spec 85049 digital cable. SPA will test this system on a dynamically-scaled ship hull structure at a bandwidth of 20 Hz, while simultaneously transmitting an analog single frequency TTL current modulation function (to simulate analog data transmission). SPA will develop a software package to record and process the sensor data for real-time assessment of the hull to provide predictions of the remaining life. SPA will interface the prototype system with the naval structural assessment code, ULTSTR, in the Phase I option, to facilitate acceptance of the system in the fleet.

DYNAFLOW, INC.
7210 Pindell School Road
Fulton, MD 20759
Phone:
PI:
Topic#:
(301) 604-3688
Dr. Ramani Duraiswami
NAVY 97-127
Title:High Fidelity Ocean Surf Zone Model for Use in USMC Simulators
Abstract:In the proposed research Dynaflow, Inc. and Nichols' AME propose to develop a high fidelity model of the surf-zone for implementation in marine corps simulators for the Advanced Amphibious Assault Vehicle. Phase I research will concentrate on identifying those elements of a surf-zone model that must be specified so that accurate forces are generated by the simulator model. Particular attention will be paid to wave induced forces, breaking wave forces, and slamming forces, and to providing good models for the engine propulsion and control subsystems of the vehicle. The model will be able to take advantage of inputs such as information on wave spectra, breaking wave spectra, cartographic information, and topographic data. Gaps in the model proposed will identified, and model tests and computational fluid dynamic simulations to fill these gaps proposed. System Identification techniques will be surveyed, and a technique chosen to use the acceptance trials data to enhance the simulator fidelity. In the Phase I option a simulator fidelity. In the Phase I option a simulator wil be implemented using the collected information, and the AME Virtual Ship software to provide a baseline for Phase II. Phase II will perform the tests and simulations necessary to develop an ingrated simulation software for the AAAV dynamics, that includes the enhanced sur-zone model. The model will be validated and demonstrated for inclusion in future DoD efforts in Phase II. The proposing companies and key personnel have decades of experience in the fields of developing marine simulators, model testing, computational fluid dynamics, and system identification.

TEXAS RESEARCH INSTITUTE AUSTIN, INC.
9063 Bee Caves Road
Austin, TX 78733
Phone:
PI:
Topic#:
(512) 263-2101
Dr. Michael Dingus/Mr. Jo
NAVY 97-130
Title:Commercial Digital Camera Environmental Protection
Abstract: Digital cameras offer extraordinary advantages in reconnaissance applications. They provide critical real time imaging capabilities not available with film; images can be transmitted electronically with no time delay. Unfortunately, commercially available digital cameras cannot withstand the conditions encountered by a Marine Expeditionary Force Reconnaissance Team (MEFRT). A protective housing is needed to shield the camera from harsh environmental and physical challenges. Texas Research Institute Austin, Inc. (TRI/Austin) will develop advanced structural polyurethane formulations that will be used in the design of a rugged, waterproof, saltwater resistant, shock resistant, camera housing. A prototype housing that allows control of all camera functions will be prepared, including component drawings, a parts list, and assembly and operating instructions. A final report will be prepared, and the prototype digital camera housing will be delivered to the sponsor.

APOLLO ENTERPRISE
18019 Sky Park Circle, Suite F
Irvine, CA 92614
Phone:
PI:
Topic#:
(714) 756-3111
Alice Gheen
NAVY 97-131
Title:A Compact, High Quality Anamorphic Adapter for COTS Infrared Camera
Abstract: We propose to design and fabricate a high performance anamorphic adapter for commercial off-the-shelf (COTS) infrared array cameras. With this anamorphic system, the viewing angle along the preferred axis can be maximized and the viewing angle along the orthogonal axis can be diminished while an equal projected area per pixel can be maintained. The viewing angles for the proposed system with an isothermal focus will be 150 degreex15 degree. The anamorphic system will be designed and made so that best possible image quality can be obtained when used together with a COTS hardware. The system are expected to be compact in structure, easy to realize and relatively low in cost. By incorporating the innovative design of the anamorphic optical system into the wide-field-of-view adapter, it is anticipated that all the Navy requirements for the IR imaging applications can be met. The objective new system represents a breakthrough, enabling technology for wide-angle IR imaging for distended scene with high imaging quality by allowing recording, playback and data analysis using generic equipment. The proposed high performance wide-field-of-view anamorphic adapter will find many dual applications and will greatly expand the usage of COTS infrared cameras.

SMART DISPENSING DEVICES, INC.
508 Oreland Mill Road
Oreland, PA 19075
Phone:
PI:
Topic#:
(215) 884-6909
Anthony Passamante
NAVY 97-132
Title:Detection and Classification Using Fractal Models: Analysis,
Abstract: Methods are developed and investigated which will exploit the fractal and nonlinear characteristics of measured sensor data. Novel autoregressive and fractal signal processing methods are applied to the detection and classification of pertinent signals. Autoregressive and other techniques are generalized to take advantage of potential nonlnear and fractal properties of data. Furthermore, it is essential to have objective measures of processor performance on which to base assessments. Toward this end, we calculatee statistically correct and objective measures of detection and classification. Receiver operating characteristics (ROC) curves are calculated to quantify detection results; classification results are quantified by the Bayes error calculated using the K-th Nearest Neighbor method.

VOCAL POINT, INC.
300 Brannan Street, Suite 604
San Francisco, CA 94107
Phone:
PI:
Topic#:
(415) 896-6300
Ronald G. Benson
NAVY 97-132
Title:Speech-Recognition Techniques for Robust Acoustic Signature Identification
Abstract: Military target vehicles of different models have unique acoustic signatures. These signature can be used for detection and for identification. One approach is to analyze the signature in the spectral domain, using the Fourier transform, and comparing new sound samples with known templates. Problems arise when signatures vary or are corrupted by noise. The problem of signature recognition has much in common with speech recognition, an active field for several decades. We propose to apply traditional and novel speech-recognition techniques to the identification of acoustic signatures. Preliminary tests in this proposal, applied to military vehicle signature data, show very high accuracy rates. In Phase I we will first develop "traditional" speech recognizers, which use non-Fourier features that have proven more robust, such as cepstral and linear-predictive-coding (LPC) coefficients. As back ends, we will investigate both hidden Markov models (HMMs) and neural networks. The algorithms will be modified to fit the problem domain in terms of frequency ranges and time scales. We will also apply more recent algorithms: the auditory image model (AIM) mimics the human auditory system; learning vector quantization (LVQ) is a novel neurally inspired, Bayesian optimal algorithm. The systems will be compared to the more traditional Fourier-based approach and evaluated for noise robustness. In Phase II, we will develop a noise-robust, real-time system to be evaluated in the field.

INTERCONNECT SYSTEMS SOLUTION (ISS)
22691 Lambert Street
Lake Forest, CA 92630
Phone:
PI:
Topic#:
(714) 587-0628
Khan Kibria
NAVY 97-133
Title:Real Time COTS Chip for Unified Avionics Interconnect
Abstract:This proposal covers the first phase of three work phases: Phase I: a) study the Serial Express and SCI-RT protocols, b) develop the adaptations necessary for real-time applications, c) simulate them, d) choose the best protocol, e) determine the requirements, feasibility, and cost of standard cell and a prototype ASIC design, and f) determine the basic requirements, feasibility and cost of a VMEbus-based SCI/SX bridge, as a demonstration vehicle; Phase II: Design a standard cell ASIC component, prototype chip, and VMEbus-based SCI-RT/SX bridge; Phase III: Transition the standard cell and prototype ASIC designs to a commercial chip fabricator for production. Phase I work will take advantage of previous or current work, done by Interconnect Systems Solution and Edgewater Computer Systems, Inc.: ISS has designed commercial SCI chips and is about to complete a SX chip design. ISS will be responsible for Phase I items d), e) and f), above. ECSI wrote the original proposed SCI-RT draft specification and was key in starting the SCI-RT Working Group. ECSI is currently carrying out a study of the SCI-RT and SX protocols, for the Navy, which will be the basis for Phase I items a), b), c), d) and f), above.

DARYOUSH GEMS, INC.
250 South Roberts Road
Bryn Mawr, PA 19010
Phone:
PI:
Topic#:
(610) 526-9012
Warren A. Rosen, Ph.D.
NAVY 97-134
Title:Low-Cost High-Speed Optical Links for Advanced Avionics
Abstract: Daryoush GEMS proposes to research and demonstrate the feasibility of developing a low-cost, low-latency serial optical link capable of supporting data transfers at data rates up to 8 Gb/s. The link will be based on a low-cost 10 GHz transceiver being developed by Focused Research (who will act as subcontractor on this project) and a low-cost injection-locked phase-locked loop technology developed by Daryoush GEMS. In addition, a low-cost encoder/decoder will be designed, modeled and simulated and available technologies for low-cost high-speed serializer/deserializers will be evaluated and a suitable technology selected for subsequent implementation. The link will be designed to support a high-performance commercial standard such as Scalable Coherent Interface, Serial Express, or Fibre Channel. Advanced modeling and simulation techniques will be used to model both the protocol and hardware to match the link characteristics to the protocol in order to achieve optimum throughput, latency, and system cost.

PRINCETON ELECTRONIC SYSTEMS, INC.
P.O. Box 8627
Princeton, NJ 08543
Phone:
PI:
Topic#:
(609) 799-7860
Reza Saedi, PhD
NAVY 97-134
Title:Low-cost High-Speed Optical Links for Advanced Avionics Data networks
Abstract: Fiber optic links are becoming integral part of the high speed communications and signal processing environment. With excellent immunity to EMI, almost unlimited bandwidth and low loss over large distances, digital and analog fiber optical links are preferred for many DOD applications. The incorporation of Wavelength Division Multiplexing (WDM) through the same single mode fiber is able to multiply the data rates through the fiber without the need to install additional fibers for the links. The objective of this research is to develop high performance digital links in the range of 4-8Gb/s or higher data rates with low noise, high dynamic range, low error rate and stability. PES has a strong background in developing high performance analog and digital fiber optical links. In phase I of this project, PES will study the Navy's need in detail and design a complete COTS components and software protocol based solution for the system. In addition , we will analyze the various aspects of the design of the digital fiber optic link in terms of loss, frequency response, noise figures, dynamic range and link latency. On the basis of the analytical prediction we will design,fabricate,charecterize and demonstrate a 4-8Gb/s directly modulated link usung availble laser diodes and photo-detectors. In phase II, we will extend our design to fabricate the state of the art transmit/receive modules as well as a complete link using COTS laser diodes, detectors and protocol for the broadband operation from 4 to 8 Gb/s or higher speed. The links will be low cost and can be made available to Navy at costs significantly lower than $1500 each. The fiber optic links will be operable over the MIL temperature range and will be ruggedized to MIL specifications in phase II. The links will be manufactured at low cost in phase III.

STOTTLER HENKE ASSOC., INC.
2016 Belle Monti Ave
Belmont, CA 94002
Phone:
PI:
Topic#:
(415) 650-7242
Alexander Davis
NAVY 97-135
Title:Artificial Intelligence Techniques for Ship Motion Forecasting
Abstract: We propose an innovative combination of Artificial Intelligence (AI) techniques to implement a real-time ship motion forecasting system, to augment current aircraft launch and recovery support systems in support of Dynamic Interface operations. This system will improve on previous prediction system efforts by introducing innovative techniques to generate actual ship motion forecasts in real-time with an immediacy commensurate with pilot and crew reaction times. It will provide sufficient support to significantly increase efficiency and safety of equipment and personnel during operations, for which previous work has been insufficient. SHAI is uniquely qualified to solve this problem by our experience in a broad range of AI paradigms, many of which promise innovative applicability to this task. These include model-based reasoning, case-based reasoning and neural networks. Further, we have acquired extensive knowledge about Dynamic Interface operations and physical system behavior prediction in general in past projects. In Phase I, we will study the state of the art of ship motion forecasting, determine the data sources available on current Naval aviation ships, acquire and study ship motion time histories, and develop a limited prototype which proves the feasibility of our approach by actually implementing the techniques that we develop to forecast ship motion.

SYSTEMS TECHNOLOGY, INC.
13766 S Hawthorne Blvd.
Hawthorne, CA 90250
Phone:
PI:
Topic#:
(310) 679-2281
Peter M. Thompson, Ph.D.
NAVY 97-135
Title:Advanced Ship Motion Forecasting for Expanded Aviation Operations
Abstract: An innovative approach to Ship Motion Forecasting Systems (SFMS) based on Neural Net (NN) technology is proposed. Preliminary results using NNs with limited amounts of recorded ship motions indicate superior performance over classical forecasting techniques. The proposed Phase I effort will develop improved versions of the NNs and will demonstrate their performance on a significantly larger set of recorded ship motion data. The ship motions will be representative of different types of naval ships operating in various sea states. The Phase I effort will also develop performance metrics and confidence levels. For example, the estimated pitch at 10 seconds has a 90% chance of being within 0.25 degrees of the actual pitch. A software and hardware specification for a real time SFMS will be written during the Phase I Option, and a PC-based prototype system will be built and verified during the Phase II effort. Specialized NN or DSP hardware will be used if required for real time operation. The prototype system will include a hardware interface for current generation Shipboard Visual Landing Aid Systems, and will include a user interface with textured 3D graphics.

CHARLES RIVER ANALYTICS, INC.
55 Wheeler St.
Cambridge, MA 02138
Phone:
PI:
Topic#:
(617) 491-3474
Paul G. Gonsalves
NAVY 97-136
Title:Intelligent Learning Agent System for Advanced Targeting Decision-Aiding
Abstract: The digitization of the tactical military environment with its concomitant increase in accessible information provides an opportunity to enhance decision-aiding capabilities of advanced Navy targeting systems. An approach employing intelligent software agents can facilitate enhanced decision-aiding by automating: the management and dissemination of relevant targeting information and intelligence data; the coordination and communication required for supporting distributed multi-site/multi-user operations; and the interface to tactical C4I systems. Additionally, the learning and tutoring aspects of agent technology can address user customization and on-line in-context coaching. Here, we propose an intelligent learning agent system for advanced targeting decision-aiding. Our system incorporates an off-line learning agent for learning operator responses to given tactical state information and event changes from prior event histories, and an on-line agent that incorporates an inference engine to map current event/state information into actions (in the autonomous decision-making mode) or suggested actions (in the tutoring/coaching mode). Our key innovation is the incorporation of several synergistic technologies: distributed processing and inter-agent communication capabilities, embedded knowledge, inferencing power, and on-line learning and customization of software agents. We see considerable potential for this approach in enhancing Navy advanced targeting decision-aiding systems and addressing future digitized battlespace requirements.

INTERSCIENCE, INC.
105 Jordan Rd.
Troy, NY 12180
Phone:
PI:
Topic#:
(518) 283-7500
Dr. James Castracane
NAVY 97-138
Title:The DMD-NVG: Use of Digital Micromirror Technology for Interference Reduction in Night Vision Systems
Abstract: The use of image intensifiers in night vision systems provides significant advantages for military missions. Extremely sensitive detectors are currently in use which enable the user to operate effectively in starlight conditions. These advantages, however, can be mitigated by bright sources within the field of view. Effects can range from simple loss of contrast to blinding and resulting loss of hardware or personnel. Because of the widespread use of night vision systems, this significant problem demands a solution. InterScience proposes to leverage our current work in high resolution image intensification and micro-opto-electro-mechanical systems (MOEMS) and apply them to the development of a new optical system for interference mitigation in night vision goggles (NVG) to be used for Navy applications. Exploiting recent developments in digital micromirror display (DMD) technology and using a novel optical arrangement, we intend to demonstrate a compact, DMD-based retrofit to NVG systems. With this goal in mind, Phase I and Phase II represent stepping stones to demonstrate the concept and develop a viable version of the DMD-NVG for the Navy. Phase III commercial spin-offs include surveillance, research applications and recreational use in as well as direct technology transfer to other branches of the Armed Services.

LSA, INC.
1215 Jefferson Davis Hwy, Suite 1300
Arlington, VA 22202
Phone:
PI:
Topic#:
(610) 363-5808
Kevin M. Flood
NAVY 97-138
Title:Interference Mitigation in Night Vision Goggle (NVG) Systems
Abstract:LSA has demonstrated the ability to minimize many of the degrading effects of night-vision interference sources through the use of spatial light modulators (SLMs). In our prior work or night-vision devices (NVDs), we realized an increase in the effective dynamic range of an intensified imaging system by a factor of 500. For this program, we intend to bring the same technology to bear for night-vision goggles. Hower, night-vision goggles have additional requirements for interference-mitigation devices in addition to those imposed by other NVD systems. Size and weight considerations, which are of utmost importance to aviators, impose demanding constraints on the design of the interference-mitigation components. Furthermore, counter-counter measures to combat laser jammers require a different approach from those used for blooming control. On this program, we will address the requirements that are unique to NVGs through a combination of proprietary device designs and existing technologies.

ATLANTIC AEROSPACE ELECTRONICS CORP.
470 Totten Pond Rd
Waltham, MA 02154
Phone:
PI:
Topic#:
(617) 890-4200
Dr. Benson Rosen
NAVY 97-139
Title:Advanced Signal Processing and Display Concepts for Airborne Active ASW Systems
Abstract:Atlantic Aerospace proposes to develop an Active Sonar Display Processor (ASDP) to distinguish between submarine and non-submarine contacts in airborne active sonar systems. Accurate active classification of anti-submarine warfare (ASW) sonar echoes is a long standing need for the Navy. Current system performance is based upon an operator viewing the sonar screen and making classifications based upon his experience. For low-frequency active systems with their inherently greater range sensitivity and operating in shallow water, the number of false contacts can overwhelm the sonar operator. The penalties associated with incorrect active classification are great. The ASDP Display Processor will provide significant display features to increase the efficiency of a sonar operator by combining and associating contacts from different sensors and platforms, displaying tracking data for sonar contacts, overlaying bathymetry to indicate likely clutter area, indicating regions of low ensonification at target depths, using icons to indicate classification results and color coding to indicate confidence in classification. This will allow the operator to ignore contacts with high confidence and concentrate on those with low confidence employing single-ping and multi-ping automatic classification clues to aid operator decision-making. Finally, it will allow operators to interact with the display to make final classification decisions.

MULTISPEC CORP.
25 Black Latch Lane
Cherry Hill, NJ 08003
Phone:
PI:
Topic#:
(609) 751-0013
Dr. David Sheby
NAVY 97-139
Title:Advanced Signal Processing for Airborne Active ASW Systems in High Clutter Environments
Abstract:The key to enhanced detection performance of future active ASW sonar systems is the suppression of heavy clutter present in projected areas of operation (e.g., littoral waters). Although improvements can be made in many operational aspects of future systems, the fundamental limitation in performance will remain the heavy clutter, which is now known to be non-Gaussian. The non-Gaussian statistics of the clutter imply that the conventional processing technique of replica correlation (matched filtering) is sub-optimal and may exhibit poor performance since it is designed for Gaussian environments. In order to achieve (near-)optimal performance in these non-Gaussian clutter environments. MultiSpec Corporation has developed a situationally-adaptive technique for non-Gaussian clutter/noise environments to achieve (near-)optimum detection performance via clutter/noise suppression. Preliminary results with real data have shown a ten-fold decrease in false alerts (for the same probability of detection) when MultiSpec's technique is used instead of the conventional replica correlation processing. In Phase I. we propose the thorough testing and evaluation of this innovative signal processing technology using suitable performance metrics of target detection in the context of future airborne active ASW systems. This will include feasibility and cost- effectiveness of system implementation, as well as crisp quantification of the value added to the planned airborne ASW systems. The non-Gaussian statistics of the clutter imply that the conventional processing technique of replica correlation (matched filtering) is sub-optimal and may exhibit poor performance since it is designed for Gaussian environments. In order to achieve (nea In Phase I. we propose the thorough testing and evaluation of this innovative signal processing technology using suitable performance metrics of target detection in the context of future airborne active ASW systems. This will include feasibility and cost-effectiveness of system implementation, as well as crisp quantification of the value added to the planned airborne ASW systems.

RDA, INC.
P.O. Box 49
Doylestown, PA 18901
Phone:
PI:
Topic#:
(540) 349-8083
Ronald H. Buratti
NAVY 97-139
Title:Advanced Signal Processing and Display Concepts for Airborne Active ASW Systems
Abstract: Environmental robustness is a significant challenge facing the extension of the Airborne ASW search mission to littoral environments. As ASW systems are used increasingly in littoral waters, environmentally adaptive signal processing, classification, and display techniques are required if the systems are to be effective in diverse sonar conditions. The Navy has undertaken a number of active classification projects which have not proven to be environmentally robust. When the classifiers are exposed to a new and unknown environment, they suffer a drastic performance reduction. The human operator is more adept than any current automatic active classifier at adjusting to the environmental variability, and should remain central to the classification process. The solution proposed here will provide comprehensible information to the operator without overwhelming him with useless data.

SICOR (SEILER INTERNATIONAL CORP.)
2239 Portside Way
Charleston, SC 29407
Phone:
PI:
Topic#:
(803) 766-5628
Carl S. Holland
NAVY 97-140
Title:AutoLog Large Array Robot for Rapid Cargo Throughput
Abstract: SICOR and the Pennsylvania State University propose to further the technology for an advanced, human interactive, automated material handling/logistics system (AutoLog) or large array robot. The system will robotically traverse large area work a Together with user-centered material handling software and controls, employing advanced virtual tools, the concept enables this large array robot to: + quickly learn and execute single, grouped or repetitive movement tasks, robotically with sophisticated attribute definition and attribute recognition software. + cost less than one third to half the price of comparable mobile crane or bridge crane systems while providing ten times the operating range along with significant positioning dexterity and movement reliability improvements. + provide remote, virtual "Point and Direct" control of operations. + greatly reduce and minimize operator training requirements.

AMERICAN GNC CORP.
9131 Mason Avenue
Chatsworth, CA 91311
Phone:
PI:
Topic#:
(818) 407-0092
Ching-Fang Lin
NAVY 97-142
Title:Universal Intelligent Ferry Control System
Abstract: This SBIR project proposes the development of a Universal Intelligent Ferry Control System to meet the Navy's requirement of more capable causeway ferries of operating in sea state 3. Through employing and integrating advanced control approaches and state-of-the-art computer hardware/software techniques, the control system will have the following features: 1) robust, adaptive and reconfigurable control capability, 2) intuitive, operator friendly and easy to use, and 3) low cost, light weight and small size. To achieve the first feature, an integrated three-level control scheme of nonlinear control, robust control and neural fuzzy control is proposed for linearization, decoupling and compensation of thruster causalities, maximum efficiency, robustness against and adaptivity to the varying length and displacement of causeway ferries with or without load. A friendly, easy-to-use and multiple-mode operator interface will be designed to provide ferry status display, mouse function selection, keyboard parameter input, and joy stick/throttle control. The latest proven hardware and software techniques, such as microelectromechanical (MEM), multi-layered integrated circuits, and windows and object-oriented programming techniques, will be utilized to reduce the physical size, weight and manufacturing cost and enhance the reliability. The emphasis of the Phase I project will be on the conceptual design, feasibility study and performance demonstration of the proposed approaches and techniques.

SYSTEMS & PROCESSES ENGINEERING CORP.
401 Camp Craft Rd.
Austin, TX 78746
Phone:
PI:
Topic#:
(512) 306-1100
Dr. Michael G. Durrett
NAVY 97-143
Title:Multi-Access portal Cargo Tracking System
Abstract: Systems & Processes Engineering Corporation (SPEC) proposes to develop an automated package tracking system which incorporates PDA/portal based RFID tags with a software reconfigurable portal readers, SPEC's Falcon Gateway SATCOM link, and SPEC Communications Router hosted at the Navy's designated logistics operations center. As packages traverse the portal reader or move pass a handheld PDA, the pallet or package contents are automatically read. Upon completion of the loading/unloading operation, the cargo manifest is transmitted as a digital e-mail message via an inexpensive Inmarsat SATCOM link to a designated Navy operations center. At the operations center a communications router sorts the manifest messages and routes the messages to multiple end location databases according to the specifics of the message routing template.

FOSTER-MILLER, INC.
350 Second Ave.
Waltham, MA 02154
Phone:
PI:
Topic#:
(617) 684-4171
Dr. Patricia Wilson
NAVY 97-146
Title:Environmentally Friendly Disposable Utensils from Clay Nanocomposites
Abstract:Foster-Miller, Inc. (FMI) proposes to use novel nanocomposite technology to enhance the thermomechanical properties of degradable polymers. These property improvements will enable the use of degradable polymers for applications requiring resistance to temperatures exceeding 100_C, such as plastic cutlery for NAVY - 93 Phase I Selections from the 97.2 Solicitation

---------- NAVY ----------

93 Phase I Selections from the 97.2 Solicitation

(In Topic Number Order)
AMERICAN XTAL TECHNOLOGY
4311 Solar Way
Fremont, CA 94538
Phone:
PI:
Topic#:
(510) 683-5900
Heikki Helava
NAVY 97-100
Title:Pressure Dependence of AlN Growth Rate
Abstract: Slack developed a thermodynamic model to predict how AlN crystal growth would vary with system pressure. He concluded growthrate increases proportionally to the square root of the nitrogen partial pressure. Thus he predict that increasing the pressure by a factor of 100 would increase the growthrate by a factor of 10. However, to date, the effect of the pressure on the growthrate has not been experimentally determined. A counter argument can be made that the growthrate should increase by reducing the pressure. Slack based his arguments on the supposition that the process is in equilibrium, but more realistically, the growthrate is limited by either the kinetics of sublimation (at the AlN powder source) or condensation (at the seed crystal) and mass transport between the source and seed. If the condensation rate is rapid and nearly irreversible, the AlN growthrate will be limited by the sublimation process. The sublimation process is analogous to evaporation, for which it has been established that the evaporation rate is directly proportional to the pressure above the melt. Thus, the evaporation rate is enhanced with a reduction in the system pressure. Furthermore, mass transfer rates are increased as the pressure is reduced since gas phase diffusion coefficients are directly proportional to the pressure. High pressures may in fact be detrimental to crystal growth, as gas-phase convection increases with pressure, and convection can lead to nonuniform growthrates of the crystal. In the analogous SiC bulk crystal growth technique, the crystal growthrate does indeed increase as the system pressure is reduced. Because the sublimation - recondensation crystal processes are similar for both AlN and SiC, it is reasonable to assume that AlN crystal growthrate also increases with a decrease in pressure.

CRYSTAL IS, INC.
25 Cord Dr.
Latham, NY 12110
Phone:
PI:
Topic#:
(518) 276-4015
Glen A. Slack
NAVY 97-100
Title:Development of Commercially Viable Growth Rates for Bulk
Abstract: We propose to develop AlN substrates for III-nitride epitaxy which will be superior to all substrates currently available commercially. In particular, the AlN substrates have significantly superior chemical compatibility, lattice/crystal structure match, thermal expansion match, and thermal conductivity when compared to sapphire substrates that are currently being extensively used for epitaxial growth. Production of bulk crystals of AlN will be easier than production of GaN or InN crystals due to the higher crystal growth rates possible for comparable nitrogen pressures. In addition, the higher thermal conductivity, larger band-gap energy and higher thermal stability of AlN will be attractive for many nitride applications. Our approach to bulk AlN crystal growth will be based on the sublimation- recondensation technique first developed for this material by Slack and McNelly. However, a significant reduction in the cost of individual substrates could be achieved if the growth rate is increased from the 0.3 mm/hr demonstrated in Slack's prior work. Here we propose to develop techniques to increase the growth rate to over 1 mm/hr based on our prior studies of the growth kinetics. In addition, we will demonstrate an appropriate substrate polishing technique during Phase I of this proposal using our existing AlN substrates.

CONDUCTUS, INC.
965 W. Maude Ave
Sunnyvale, CA 94086
Phone:
PI:
Topic#:
(408) 523-9496
Gregory A. Lehmann
NAVY 97-101
Title:Development of an HTS Transmit Filter Package System thatProvides Uniform Cooling
Abstract:Conductus proposes to develop an HTS transmit filter package system that provides uniform cooling to the HTS elements of the filter. An isothermal or as near as possible temperature distribution in the filter elements is highly desirable for optimum filter performance. Both filter design and package system design ultimately impact filter performance; this program emphasizes the contributions of package design. The main goal of the proposed effort is to design an HTS transmit filter package that is mechanically stable and provides an isothermal environment or as close to as needed to realize good HTS transmit filter performance. Key items that will be addressed are resonator design, package system thermal performance, and package system structural details such as tuning stability, wafer bonding, and cryocooler interface.

CREARE, INC.
Etna Rd., P.O. Box 71
Hanover, NH 03755
Phone:
PI:
Topic#:
(603) 643-3800
Dr. Michael G. Izenson
NAVY 97-101
Title:Cryogenic Cooling for Vertically Arrayed HTS Devices
Abstract: The objective of this project is to develop practical, cryogenic packaging technology for HTS devices that are packaged in rigidly bonded, vertical arrays. The approach is to develop uniform-temperature cooling planes that can be integrated directly with an array of HTS substrates. In Phase I we will demonstrate the feasibility of the integral cooling planes by (1) specifying the thermal and interface requirements for the cooling planes, (2) selecting a cryogenic cooling system that can provide the needed cooling, and (3) demonstrating the fabrication and cryogenic operation of the integral cooling plane using standard microwave substrates for YBCO circuits.

SENSORS UNLIMITED, INC.
3490 U.S. Route 1, Building 12
Princeton, NJ 08540
Phone:
PI:
Topic#:
(609) 520-0610
Dr. Alan R. Sugg
NAVY 97-102
Title:"Type II Interband Quantum Cascade Mid-Infrared Laser"
Abstract: Sensors Unlimited will grow, fabricate and test a Type II AlGaAsSb/InAs/InGaSb interband quantum cascade laser (QCL) designed to operate at a wavelength of 3.3 ¶m. The goal of this program is the delivery of the relevant basic material and structural characterization necessary for the design of a type II interband quantum cascade laser along with a QCL operating at a temperature of at least 273 K. The motivation for a 3.3 ¶m wavelength is the commercial potential of mid-infrared laser diodes for CH4 gas-sensing applications. In order to achieve this goal, Sensors Unlimited will use the services of Sarnoff Corporation to grow and fabricate low-loss broadened waveguide laser structures in the antimonide system. In addition to the electrical injection laser structure, we will separately fabricate and test the optical gain and superlattice electrical injection regions of the quantum cascade active region in order to evaluate the basic material properties, such as absorption, thermal conductivity, and the electrical and optical performance of the respective regions. Data from these measurements will prove invaluable for further designs to be fabricated and tested in Phase II of the program. For this program, Sensors Unlimited and Sarnoff Corporation will leverage the experience gained by successful commercialization of 2.6 ¶m antimonide-based Type I quantum well lasers.

MILLIMETER WAVE TECHNOLOGY, INC.
1920 West Oak Circle, Suite 200
Marietta, Ga 30062
Phone:
PI:
Topic#:
(770) 425-9382
Dr. Dennis Kozakoff
NAVY 97-103
Title:Advanced Antenna Concepts
Abstract: Navy Applications of compact antennas span nearly all frequency bands, from ELF to SHF. In the short wavelength bands, electronically-steered array applications would benefit from small element-to-element spacing because in such geometries The effort begins with fundamental approaches to achieving wideband performance, with an emphasis on microstrip antenna elements. Surface mode microstrip (SMM) is shown viable. Next, antenna radar cross section (RCS) is investigated from the viewpoint of both structural and antenna mode scatter. Methods of reducing both of these components are addressed. In particular, structural mode scatter may be reduced with a structural RAM plastic, while antenna mode scatter requires special matching conditions.

PATRIOT SCIENTIFIC CORP.
10989 Via Frontera
San Diego, CA 92127
Phone:
PI:
Topic#:
(619) 674-5000
Elwood G. Norris
NAVY 97-103
Title:Ionized Plasma Antenna Development Concept
Abstract:By utilizing ionized conductors as antenna elements (ICA) you can construct an antenna that can be dynamically reconfigured for frequency, directionality, bandwidth, gain and beamwidth. Further, the antenna could be deionized when not in use, which will substantially reduce its radar cross-section and thus it's detectability (stealth). When used as an impulse transmitter, extremely short pulses are possible by deionizing the antenna to prevent ringing associated with traditional antenna configurations, thus combining the benefits of low probability of intercept (outgoing signal) with low probability of detection (stealth). Further, the extremely short impulse(because ringing was prevented) will allow substantially improved wavelet decomposition of the return with less computational overhead. The improved decomposition yields greater accuracy in the target detection and classification algorithms.

COHERENT TECHNOLOGIES, INC.
655 Aspen Ridge Drive
Lafayette, CO 80026
Phone:
PI:
Topic#:
(303) 604-2000
Dr. Geoff A. Wilson
NAVY 97-104
Title:4D Atmospheric Data Retrieval with an Airborne Solid-State LIdar
Abstract: The proposed Phase I/II program develops a flexible, modular 3D scanner for integration aboard small research aircraft and unmanned aerial vehicles (UAV), with a variety of solid-state coherent lidar sensors. The Phase I effort explores both mechanical and non-mechanical scanner architectures in an effort to benefit both research aircraft and UAV, as well as commercial airliner lidar platforms in the lidar marketplace. The most promising scanner technique will be chosen for Phase II development. The scanner built under Phase II will be modular and versatile, in that it will be a bolt-on unit compatible with several available and emerging transceiver designs, for a variety of airborne experiments. The Phase I further extends the capabilities of coherent lidar wind-sensing technology by developing preliminary design extensions to existing lidar transceivers to incorporate dual polarization reception for aerosol characterization, as well as water vapor and temperature profiling.

METRATEK, INC.
12330 Pinecrest Rd.
Reston, VA 20191
Phone:
PI:
Topic#:
(703) 620-9500
Raymond L. Harris
NAVY 97-104
Title:Four-Dimensional Atmospheric and Oceanographic Instrumentation - Processing & Control Station and Data Link for RPV SAR
Abstract: Topic N97-104 has the objective of developing innovative instrumentation to obtain marine atmospheric and oceanographic variables in 3-D space and time. The proposed effort addresses several key areas that are mentioned in the solicitation: (1) application to the air/sea environment of the open ocean, continental slope and the very near-shore surf zone; (2) support of active electromagnetic sensors, in this case Synthetic Aperture Radar (SAR) remote sensing of the air-sea interface; (3) use of off-the-shelf, low-cost components.The area of investigation is the development of a new type of data link and a mobile ground Processing and Control Station (P&CS) to support an RPV or small manned aircraft that is being used to collect interferometric synthetic aperture radar (INSAR) or SAR data. The P&CS permits remote control of the RPV mission, monitoring of the GPS location of the RPV,display of real-time radar data to ensure data quality, and permits use of high-capacity commercial recording devices that would otherwise be too heavy and too power-hungry for use aboard the vehicle carrying the radar.

DYNAMICS TECHNOLOGY, INC.
21311 Hawthorne Blvd.
Torrance, CA 90503
Phone:
PI:
Topic#:
(310) 543-5433
Dr. Enson Chang
NAVY 97-105
Title:Shallow Water Synthetic Aperture Sonar
Abstract: Acoustical MCM and ASW operations in shallow water are plagued by the prevalence of false targets as well as strong reverberation and multipath. The combination of imaging and environmental adaptivity may be the key to overcoming these problems. Synthetic aperture sonar (SAS) is a revolutionary technology which provides at least an order of magnitude search rate improvement over side looking sonar (SLS) while maintaining the same resolution. Important classification and identification cues are obtained at search ranges by imaging the target's highlight structures and acoustic shadow. These cues will reduce false alarm rate (FAR) in MCM and may present the only viable means by which to discriminate low or no-doppler targets against clutter in ASW. Extending SAS capabilities into shallow water requires modifying the SAS processor to account for propagation effects. Dynamics Technology, Inc. (DTI) proposes several alternatives for incorporating model-based matched filtering (MBMF) into the existing SAS processing stream to counter multipath distortions of the signal waveform. We will also evaluate the effectiveness of "focalization" (or matched field tomography) for adaptively tracking environmental variations in the SAS imaging context. Emulated and recently collected field data will provide the test bed for these concepts.

LITE CYCLES, INC.
2010 N. Forbes Blvd., Suite 100
Tucson, AZ 85745
Phone:
PI:
Topic#:
(520) 798-1214
Lonnie K. Calmes
NAVY 97-105
Title:Raman Image Amplifier for Marine LIDAR Applications
Abstract:This project will focus on the development of a compact, rugged, low-maintenance, cost-effective, all solid-state Marine Raman Image Amplifier (MARIA) capable of amplifying low-level ocean LIDAR images and producing gated images with potential gate times of tens of picoseconds. The innovative technology to be implemented is based on a solid-state stimulated Raman scattering technique developed by our team. This proposal describes the unique features of this new technique for producing gated images and shows how this device can substantially improve underwater image resolution and reject interfering sunlight in bright daylight conditions. Integration of this device into an imaging marine LIDAR system has the potential to greatly improve classification and identification of sea mines and submarines. The MARIA can be seen as a technology alternative to microchannel plate image intensifiers that are limited in terms of spatial and temporal resolution and require complicated, bulky, and expensive high voltage electronics modules for operation.

DELPHI COMMUNICATION SYSTEMS
30 North Avenue
Burlington, MA 01803
Phone:
PI:
Topic#:
(617) 221-2200
Dr. John G. Proakis
NAVY 97-106
Title:Underwater Acoustic Channel and Network Optimization
Abstract:The objectives of this work are (1) to develop methods for acoustic channel prediction from nominal oceanographic data, and (2) to optimally design underwater acoustic networks to maximize the network surveillance performance, while minimizing its power consimption. The example network consists of a master node and a multitude of possibly mobile sensor nodes whose task is to report the information collected to the master node by relaying it from node to node. Acoustic channel characterization involves signal strngth prediction based on the transmossion loss; multipath intensity profile prediction based on acoustic propagation modeling, and prediction of Doppler spectrum due to random fluctuations using statistical characterization of surface scattering and nodes' spatial properties. In addition, adaptive channel estimation and interference prediction methods will be developed. Network design encompasses optimal dynamic routing and the choice of a multiple-access technique. It includes optimization of the network layout based on the acoustic channel prediction; network initialization procedure; data frame design; multiple-access technique optimization based on capacity calculations, and optimization of routing functions. Dynamic routing algorithm design provides adaptive selection of optimal routes based on the channel state, as well as flexibility to node failures and new node initializations. Acoustic channel characterization involves signal strngth prediction based on the transmossion loss; multipath intensity profile prediction based on acoustic propagation modeling, and prediction of Doppler spectrum due to random fluctuations using statist Network design encompasses optimal dynamic routing and the choice of a multiple-access technique. It includes optimization of the network layout based on the acoustic channel prediction; network initialization procedure; data frame design; multiple-access technique optimization based on capacity calculations, and optimization of routing functions. Dynamic routing algorithm design provides adaptive selection of optimal routes based on the channel state, as well as flexibility to node failures and new node initializations.

CENTER FOR REMOTE SENSING, INC.
P.O. Box 9244
McLean, VA 22102
Phone:
PI:
Topic#:
(703) 848-0800
Suman Ganguly
NAVY 97-107
Title:Satellite Based Sensors for Unambiguous Retrieval of Ionospheric Data in Conjunction with Ground Based Receivers
Abstract: We propose a small low powered satellite based instrument package consisting of EUV monitoring system, a modern swept frequency type sounder and a two frequency beacon. This package will provide primary standard measurements of electron density distributions in the topside ionosphere, where most of the ionization resides. Intercomparison of different satellite instruments and ground based measurements will help DMSP operations and enhance the space-weather activities. Intercomparison and validation of the ionospheric profiles derived with different techniques and from model predictions are essential for both operational enhancement and development of new techniques. These will help validation of different techniques, development of ionospheric tomography, understanding global morphology and other ionospheric processes. During Phase I, we address the issues associated with the development of such a system and perform an initial system design.

MICROFAB RESEARCH, INC.
338 Westfield Rd.
Charlottesville, VA 22901
Phone:
PI:
Topic#:
(804) 963-4490
Philip J. Koh
NAVY 97-107
Title:Application of Novel Micromachined Millimeter Wave Systems to Space Based Radiometers and Radar Systems
Abstract: Novel techniques have been developed for the application of micromachining techniques to the fabrication of millimeter and submillimeter wave components for space based receivers and radar systems. These techniques may permit significant reductions in costs of fabrication. Also, design cycles and system development may be accelerated. These techniques are compatible with the fabrication of linear and two-dimensional arrays of components, opening up new possibilities for space based millimeter wave systems.

CERAMARE CORP.
262 Lincoln Avenue
Highland Park, NJ 08904
Phone:
PI:
Topic#:
(732) 445-2724
Dr. Larry E. McCandlish
NAVY 97-108
Title:Seeded Hydrothermal Growth of Large PZT Crystals and Single-Crystal Array Transducers
Abstract:This SBIR Phase I project seeks to provide large seeds for the hydrothermal growth of centimeter-size lead zirconate titanate (PZT) crystals. Large crystals of strontium titanate (ST) and lanthanum alumminate (LA) share the same perovskite crystal structure with PZT and are readily available candidate for the heteroepitaxial growth of PZT. There is, however, a large a-axis lattice mismatch that inhibits nucleation of the PZT phase. Our preliminary experiments suggest that a sputtered nanolayer of PZT on ST substrated provides numerous nucleation sited for the hydrothermal growth of a dense single-crystal PZT overlayer ( as shown by our FESEM and X-ray diffraction studies). The nanostructured interlayer eases the transition between the substrate lattice and the PZT lattice, accommodating the lattice mismatch and relieving the accompanying stress. Having circumvented the lattice mismatch problem, hydrothermal processing should provide a high growth rate leading to a large single crystals of PZT in reasonably short time. In Phase I program we will test the feasibility of hydrothermally growing single crystals of PZT on interlayer prepared ST and LA seeds (5mm x 5mm). We will also examine the feasibility of growing single crystal arrays on substrates that have an interlayer pattern written upon them.

CRYSTAL ASSOC., INC.
31 Farinella Drive
East Hanover, NJ 07936
Phone:
PI:
Topic#:
(973) 581-1717
Paul Bridenbaugh
NAVY 97-108
Title:Growth of Single Crystal Piezoelectrics
Abstract: Single crystals of lead magnesium niobate-lead titanate have superior dielectric and piezoelectric properties. To date all crystals have been grown by flux techniques and sizes have been small. Also growth rates in flux systems are slow. In this study we will investigate growth of PMN-PT by a melt technique, specifically the Bridgman technique. We will study by DTA the liquidus and solidus temperature as a function of composition and from this data construct a preliminary phase diagram. Materials for and designs of crucibles will be evaluated to reduce or eliminate sticking of the grown crystal to the crucible. A two zone furnace will be used for Bridgman growth so that we will have more control over the temperature gradient at the melt-solid interface than would be possible with a single zone furnace. Using seeds cut from single crystals of PMN-PT we grow by the high temperature solution technique, seeded growth will be studied. Physical properties of crystals grown by the Bridgman technique will be measured for comparison with single crystals grown by other methods.

FOSTER-MILLER, INC.
350 Second Ave.
Waltham, MA 02154
Phone:
PI:
Topic#:
(617) 684-4183
Mr. Ronald G. Roy
NAVY 97-108
Title:DOPED PSN.91-PT.09 ELECTROSTRICTIVE SINGLE CRYSTALS
Abstract:Requirements for high quality electrostrictive single crystals continue to be important because the polycrystalline PSN-PT materials have a lower coupling coefficient . Single crystal PSN-PT is an attractive transducer material because of its very high energy density and its capacity to undergo large electrostrictive strains. Foster-Miller has conceived of an innovative approach to grow PSN.91- PT.09 single crystal compositions, uniformly doped, large diameter PSN-PT single crystals either by itself or encapsulated in a porous single crystal sapphire skeleton. Our processing approach eliminates the following problems - small crystal size, high defect structure and cracking, high >42% PT compositions associated with limitations of the current state of the art crystal growth processes. Additionally, our "sapphire/PSN-PT composite" will have a high fracture toughness, thermal shock resistance, and light weight without much reduction in the PSN-PT electrostrictive properties. Foster-Miller's process has the capability of growing single crystals at relatively low temperatures not possible with current crystal growth processes. Also, being a isothermal constant temperature process, it will promote uniform distribution of dopants and constant PT concentration levels. Our approach will be an enabling technology for producing low cost, high efficiency, high strength electrostrictive single crystals that are stable at high temperatures. The process is versatile and has the potential to produce high quality piezoelectric and electrostrictive single crystal materials of other desired compositions. The Phase I program will involve the growth of PSN-PT single crystal specimens and characterization including X-ray diffraction, dielectric and piezoelectric measurements. The Phase I team includes Penn State University as a subcontractor who will evaluate these materials. Foster-Miller's process has the capability of growing single crystals at relatively low temperatures not possible with current crystal growth processes. Also, being a isothermal constant temperature process, it will promote uniform distribution of dopan The Phase I program will involve the growth of PSN-PT single crystal specimens and characterization including X-ray diffraction, dielectric and piezoelectric measurements. The Phase I team includes Penn State University as a subcontractor who will evaluat

LASERGENICS CORP.
6830 Via Del Oro, Ste. 103
San Jose, CA 95119
Phone:
PI:
Topic#:
(408) 363-9791
Dr. Sandor Erdei
NAVY 97-108
Title:Growth of Large Solid-Solution Piezoelectric Crystals by the BSFT Technique
Abstract: High performance transducers are not presently available using today's ceramic piezoelectric materials. The lead based complex oxides and their possible solid-solution systems have large dielectric constants, large piezoelectric strain coefficients and high longitudinal coupling constants. But these constants are compositionally dependent. Much more efficient transducers are possible if the lead based oxides can be grown in single crystals of sufficient size. Our proposal is to apply our new growth method, the BSFT technique, to this problem.

MATERIALS SYSTEMS, INC.
521 Great Rd.
LittletoN, MA 01460
Phone:
PI:
Topic#:
(508) 486-0404
Richard Gentilman/Kelley
NAVY 97-108
Title:Low Cost Manufacturing of Advanced Undersea Actuator Materials
Abstract: Single Crystal relaxor ferroelectric materials have been found to have significant electroacoustic property enhancements compared to their polycrystalline counterparts. Navy underwater acoustic projectors would benefit significantly from the high sound pressure levels and compactness that such transducer materials make possible. The key to their successful application in many Navy transducer systems is to achieve a low cost, high volume manufacturing process. In Phase I, Materials Systems Inc. plans to demonstrate the basic feasibility of recrystallizing net shape injection molded relaxor ceramic 1-3 preforms at a manufacturing viable production rate using two methods of seeded solid state conversion. In Phase II, the Phase I process work will be extended to refine the process parameters for high rate crystallization and to improve actuation performance. Single crystal SonoPanel« 1-3 composite transducers will be fabricated to demonstrate in water performance. The technology will be inserted into ongoing MSI 1-3 composite projector development and manufacturing programs under Phase III.

NZ APPLIED TECHNOLOGIES CORP.
8A Gill St.
Woburn, MA 01801
Phone:
PI:
Topic#:
(617) 935-2030
Dr. Jing Zhao
NAVY 97-108
Title:Novel Approach to the Growth of Single Crystalline Relaxors
Abstract: Single-crystals of PMN-PT and other excellent ferroelectric materials hold the promise of realizing the next generation of high performance piezoelectric transducers. Presently, bulk single crystal growth techniques are severely hampered for producing this type of materials, due to the difficulties caused by lead evaporation and the formation of the other phases. Epitaxial growth of very thick films is a favorable, alternative, approach to obtaining large area, high purity single-crystals. Such technical approach is currently the production method for large transparent single-crystalline ZnS and ZnSe crystals for IR window fabrication. NZ Applied Technologies has developed an innovative low cost process which is well suited to produce large single crystalline PMN-PT. This novel process has unique deposition capabilities of very low cost , large area , and very thick film capability. Based on our initial success in epitaxial growth of relative thick films (25¶m), in Phase I, we will optimize our process to grow large area single-crystalline PMN-PT disk of a few mm in thickness.

TRS CERAMICS, INC.
2820 E. College Avenue, Suite J
State College, PA 16801
Phone:
PI:
Topic#:
(814) 238-7485
Wesley Hackenberger
NAVY 97-108
Title:Single Crystal Growth of Relaxor Based Piezoelectric Materials for High Performance Transducers.
Abstract:This Small Business Innovation Research (SBIR) program will address the fabrication and testing of large relaxor based piexolectric single crystals (PMN:PT), to meet size requirements for various DOD transducer applications. Crystals of PMN:PT will be directly grown from the melt in encapsulated plantinum (Pt) crucibles using flux grown crystals as seeds. The expected cylinderical shape (<2 " diameter) will offer the potential of wafer technology as utilizing dopant strategies. TRS Ceramics has an exclusive license from the Pennsylvania State University for the commercial application of piezoelectric single crystals that include actuator and biomedical transducer.

LIGHTWORKS, LLC
8513 N 95th Street
Longmont, CO 80501
Phone:
PI:
Topic#:
(303) 651-3268
Paul J.M. Suni
NAVY 97-109
Title:Diode Laser Velocimeter for Flow Measurements
Abstract: Using non-traditional techniques, optical velocity measurements can be made at a cost far below that of traditional LDVs and coherent laser radar systems. Despite extreme simplicity, including the use of low power COTS diode lasers, we have demonstrated that the proposed devices have nearly quantum limited sensitivity. This has been demonstrated to be sufficient to easily and accurately measure the speed of single micron size aerosol particles. The sensor performance, coupled with extreme compactness and low cost, makes it ideally suited for US Navy water flow measurements near submerged structures, such as propeller blades. The operating principle of the basic sensor is different from traditional LDV systems, in that radial, rather than transverse, velocities are measured. This difference only implies that the sensor look angles need to be changed. Furthermore, it appears feasible to configure the proposed sensors such that transverse measurements are made. If this proves successful, there is no difference at all in the two sensor types. We propose to demonstrate in Phase I the applicability of these sensors to vector velocity recovery in water flows. We will also build a waterproof prototype unit for testing by the U S Navy.

METROLASER, INC.
18006 Skypark Circle #108
Irvine, CA 92614
Phone:
PI:
Topic#:
(714) 553-0688
Cecil F. Hess
NAVY 97-109
Title:Two-component, frequency shifted LDV system for underwater applications
Abstract: We propose to develop a compact, robust, and low cost diode laser-based Doppler velocimeter system capable of simultaneously measuring two velocity components with frequency shifting for resolving flow directional ambiguity. In addition to being compact, the system will require low power consumption leading to the ability of implementing multiple battery-operated probes within a constrained volume. These attributes will be possible due to an innovative frequency shifting strategy that can be implemented with low speed electronics without the detriment associated with the RF radiation of acousto-optic modulators. Furthermore, the shifted Doppler signal will also be low speed thus optimizing signal/noise of the photodetector and associated electronics.The Phase I work will consist of system modeling, design, and construction and experimental verification in a small water tank. We plan to deliver a working prototype to the Navy for testing in their water tunnel facility. Phase II will produce a complete system including signal processing electronics which should be of significant value to the Navy program.

NAL RESEARCH
14318 Montverd Court
Centreville, VA 20121
Phone:
PI:
Topic#:
(703) 803-1418
Ngoc Hoang, PhD
NAVY 97-109
Title:Development of Velocity Sensor Utilizing Laser Diodes and Avalanche Photodiodes
Abstract: The system consists of two laser diodes of either the same or different wavelengths in the visible range. Both laser diodes are driven by a single current oscillator at a pre-determined base frequency. This base frequency is divided into two electrical pulse trains at exactly half the original base frequency by a two-stage shift register. One of these electrical pulse trains is applied to the first laser diode to trigger a laser pulse. At a short time later, a second electrical pulse train is applied to the second laser diode to initiate a second laser pulse. These laser pulses are subsequently focused into two measurement volumes by collimator optics, mirrors and focusing lens and resulted in two orthogonal sequentially pulsed fringe systems. The phase different between the first and second laser pulse fringe system can be accurately determined. A receiver system consisted of a single avalanche photodiode and focusing lens is used to detected the scattered Doppler signals from both measurement volumes. The sampling rate of the avalanche photodiode is synchronized with the current oscillator base frequency. Doppler signal from each measurement volume can be de-coupled, from the signal sampled by the photodiode, to obtained two-dimensional velocity information of a particle.

BLATEK, INC.
2820 E. College Avenue, Suite F
State College, PA 16801
Phone:
PI:
Topic#:
(814) 231-2085
Timothy Ritter
NAVY 97-110
Title:1-3 Single Crystal Composites for Broadband Ultrasonic Imaging Transducers
Abstract: This SBIR program will address the modelling, fabrication, and testing of single crystal composite transducers. Comprised of single crystal relaxor-PT piezoelectrics, both single element and array configurations will be investigated for high performance medical ultrasonic imaging transducers. In collaboration with TRS Ceramics, Inc., single crystal relaxor PT piezoelectrics will be integrated into the transducer, providing ultra high electromechanical coupling (up to 92%), broad bandwidth, high sensitivity, and decreased impulse response for improved axial resolution. Using a one dimensional model, bandwidths of up to 130% have been realized. A direct comparison between an optimally designed single crystal relaxor PT composite transducer and an optimally designed PZT composite transducer will be made to demonstrate this performance enhancement. This Phase I research will provide a basis for further transducer optimization and cost effective manufacturing of an optimally matched broadband array in Phase II. A Phase I option for modelling, construction, and testing of an array element will enhance the development of the Phase II proposal.

TETRAD CORP.
357 Inverness Dr. South
Englewood, CO 80112
Phone:
PI:
Topic#:
(303) 754-2315
Dr. Clyde G. Oakley
NAVY 97-110
Title:Single Crystal Relaxor-Based Ferroelectrics Offer a Quantum
Abstract: The goal of this program is to apply recent advancements in the growth of piezoelectric single crystal materials to build ultrasound transducers with very broad bandwidth, which can improve and simplify ultrasound imaging for combat casualty care. Relaxor-based ferroelectric materials of PZN-PT and PMN-PT have been shown to have coupling factors for some modes of over 90%. Transducer modeling shows that these properties can theoretically lead to transducers with exceptionally wide bandwidth (over 120%). The set of procedures which would be useful for external imaging during triage in a combat casualty care would take up to three transducers of standard construction ranging from 3.5 MHZ to 7.5 MHZ in center frequency. If a transducer with 120% bandwidth can be constructed, that single transducer can perform all of those imaging functions. Tetrad will work with TRS Ceramics and Crystal Associates who are the leading U.S. manufacturers of high-coupling single crystal material. In Phase I, methods for surface preparation, grinding, metalizing for electrode attachment, bonding of polymers, and processes for building 2-2 and 1-3 composite materials will be investigated. Samples of these materials will be used to build subapertures of medical imaging arrays demonstrating broad bandwidth in the water tank. The goals for Phase II will be to use these designs and production methods to develop complete 1-D and 1.5-D ultrasound imaging arrays and to show images covering the bandwidth achieved.

DIGITAL OPTICS CORP.
5900 Northwoods Parkway, Suite J
Charlotte, NC 28269
Phone:
PI:
Topic#:
(704) 599-9191
Dr. Eric Johnson
NAVY 97-111
Title:Self-Assembled Monolayer Based Methods for Fabrication of Diffractive Optical Elements
Abstract: This SBIR Phase I project builds upon Digital Optics Corporation's experience in the design, fabrication and commercialization of diffractive and micro-optics and the experience of Dr. George Whitesides of Harvard University to provide an innovative approach to the fabrication of diffractive and micro-optical components using self-assembled monolayers (SAM's). The proposed approach makes use of SAM's for the inexpensive fabrication of submicron diffractive structures on both flat and curved surfaces. Many exciting and useful micro-optical elements exist that cannot be efficiently manufactured in production quantities with conventional methods, if they can be fabricated at all. The use of SAM-based methods will provide additional opportunities for cost-efficient fabrication of both existing and new types of micro-optics. This Phase I effort will demonstrate the application of SAM's to the fabrication of micro-optical elements. Both analytical and experimental work will be performed to verify the objectives of the proposed project.

EIKOS, L.L.C.
89 Richmond St.
Raynham, MA 02767
Phone:
PI:
Topic#:
(508) 880-0007
Dr. Paul Winsor
NAVY 97-111
Title:High Performance Capacitor Dielectrics From Self Assembled Monolayer Based Fabrication
Abstract: Eikos will develop high performance capacitor dielectrics based on self-assembled monolayer buildup processing. This approach to building a capacitor dielectric will include incorporation of a graft conducting polymer as at least one of the electrodes, resulting in superior stored energy density with low dissipation factor at voltage ranges (5V to 500V) currently dominated by inefficient electrolytic capacitors. This processing technique will allow for capacitor fabrication directly onto circuit boards as well as fabrication of discrete rolled capacitors. Adoption of monolayer based dielectric assembly opens the opportunity for rapid development of new polymer dielectrics currently impeded by the lengthy and expensive process development required for traditional polymer dielectrics.

APTIMA, INC.
25 Mall Road, Suite 300
Burlington, MA 01803
Phone:
PI:
Topic#:
(617) 270-0613
Dr. Jean MacMillan
NAVY 97-112
Title:COMPUTER-BASED ADAPTIVE TUTOR FOR ADULT READING COMPREHENSION
Abstract:We propose to develop a computer-based adaptive tutor to improve the reading comprehension skills of adult readers. Our instructional strategy is based on the Reciprocal Teaching method, demonstrated to improve reading comprehension. The "scaffolded" Reciprocal Teaching method demonstrates strategies for full reading comprehension, then gradually withdraws instruction, encouraging learners to practice and gain comprehension on their own. The challenge for this project is to capture the spirit and techniques of Reciprocal Teaching in a computer-based tutor. We focus on three components of advanced reading: reading to understand key concepts, reading to evaluate the legitimacy of ideas, and reading to apply ideas and information to new circumstances. We believe that the learner needs both generic instruction in reading-comprehension strategies and content-specific instruction that shows how to apply those strategies to a specific text. We also propose note-taking as a valuable tool for increasing reading comprehension. The adaptive tutor will use these three instructional strategies to improve reading understanding, evaluation, and application skills. The products of Phase I will be a tutoring framework, adaptation principles for creating individual learning paths, a prototype that demonstrates the concept, a system architecture for Phase II, and a plan for evaluating the effectiveness of the tutor.

INTELLIGENT AUTOMATION, INC.
2 Research Place, Suite 202
Rockville, MD 20850
Phone:
PI:
Topic#:
(301) 590-3155
Jacqueline Haynes
NAVY 97-112
Title:CBT To Enhance Adult Literacy Through In-Depth Assessments and Automated Guiance
Abstract:In response to this Phase 1 SBIR solicitation, Intelligent Automation, Inc. (IAI) proposes to research a new technological approach for enhancing adult literacy. Our objective is to design and prototype a CBT system that integrates pedagogically sound instructional methods with automated assessment technologies to accommodate the special needs of the adult literacy students. Out technical objectives represent a development approach between simplistic CBT and traditional ITS. This approach does not require the extensive effort and impracticalities of student modeling that are required in traditional ITS. Instead, our approach enhances a (simplistic) CBT environment with robust, in-depth assessments and automated guidance techniques. IAI proposes to: (1) enhance a CBT environment with multiple, automated, in-depth assessments of student progress in vocabulary, reading comprehension, fluency, and accuracy; (2) establish a reading competence "ladder" of the materials in the CBT curriculum; and (3) build an automated guidance tool to match individual students with the materials that best suit their current reading competence and their "zone of optimal learnability". Additionally, we propose to ease the authoring effort by integrating an authoring tool that automatically places new materials in the proper location within the "ladder-like" structure of the curriculum.

STOTTLER HENKE ASSOC., INC.
2016 Belle Monti Ave
Belmont, CA 94002
Phone:
PI:
Topic#:
(415) 655-7242
Richard H. Stottler
NAVY 97-112
Title:An Intelligent Tutoring System for Adult Literacy Enhancement
Abstract: This proposal presents the opportunity to apply our existing experience, research, and technology in Intelligent Tutoring Systems (ITSs) and pedagogical techniques to the adult literacy problem. ITSs assess, model, diagnose, and automatically develop a tailored course of remedial instruction for individuals. ITSs emphasize custom instruction tailored to the particular individual. Our approach includes theoretical, pedagogical, empirical, and practical philosophies. We emphasize the use of real-world, adult-applicable reading material, chosen for its appropriate reading difficulty and relevancy to the end user. This is facilitated by the capability of our ITS to receive a document (which includes multi-media) from Naval personnel (non-programmers) and automatically extract the information from it for reading practice, exercises, and assessment. In Phase I, we will develop a prototype (ITS) for adult literacy enhancement for testing and evaluation. The use of an ITS for reading enhancement will achieve many of the same benefits as one-on-one instruction. When ITSs are enhanced with interactive multimedia, students demonstrate greater motivation during training and greater retention of course material. Thus, an ITS provides instruction that is at once cost-effective and potentially superior to traditional reading teaching methods. We have used this ITS approach with much success in other training domains.

IMAGECORP, INC.
9104 Mistwood Dr.
Potomac, MD 20854
Phone:
PI:
Topic#:
(301) 294-6486
Qinfen Zheng
NAVY 97-113
Title:An Unattended System for Monitoring Human Combatant
Abstract: Unattended surveillance of human combatants in urban environments is an important and challenging task in law enforcement and peace keeping missions. Traditional approaches, based either on temporal difference or pattern recognition using still frames, are inadequate. As a technology transfer effort based on prior research results of leading scientists, ImageCorp proposes in this Phase I effort to design a site model supported, PC-based surveillance system for automatic detection, tracking and monitoring of human combatants in urban environments. Using a site model, information from multiple sensors and platforms, as well as prior knowledge such as locations of sensitive areas and typical combatant activities can be employed in image exploitation. Further, the history of moving targets can be effectively represented, enabling the tracking of targets even under concealment or cessation of motion. The proposed system will fuse information collected from distributed acoustic sensors, as well as wide angle and zoom infrared and visual cameras. Solutions to issues such as 2-D site model construction, sensor stabilization and image mosaicking, moving object detection, human recognition, tracking, action understanding, and data fusion are proposed and will be investigated during the proposed Phase I effort.

ATLANTIC AEROSPACE ELECTRONICS CORP.
470 Totten Pond Rd
Waltham, MA 02154
Phone:
PI:
Topic#:
(617) 890-4200
Kenneth Ellis
NAVY 97-114
Title:Integrated Color Coding and Monochrome Multi-Spectral Fusion
Abstract:The proposed effort is aimed at the development and demonstration of the feasibility of a new integrated color coding and a contrast-based monochromatic fusion process. We will investigate two methods for color coding that utilize the monochrome fused image. Each of the color coding methods will provide consistency of color presentation as a function of daytime, background variability and illumination conditions. The new monochrome fusion process will maximize the information content in the combined image, while retaining visual clues that are essential for navigation/piloting tasks. The Phase I development will focus on the fusion of imagery from image intensifiers and forward looking infrared sensors currently used by the U.S. Navy for navigation and targeting. The approach is easily extendible to more than two bands. To be effective, the fused imagery will maintain relationships that correspond to natural (daytime) vision of the same features. Under stress the human operator is liable to revert to his most natural interpretation and act on it. Thus any image transformation which distorts such relationships, even if it can be learned by the user and responded correctly in the lab or during training, may be less effective. Since the overall objective of the effort is a real time demonstration, we will focus during the Phase I program on practical and computationally efficient image processing components. The real-time implementation of the developed process using commercially off the shelf (COTS) digital signal processors (DSPs) will be deferred to the Phase II effort Since the overall objective of the effort is a real time demonstration, we will focus during the Phase I program on practical and computationally efficient image processing components. The real-time implementation of the developed process using commercially off the shelf (COTS) digital signal processors (DSPs) will be deferred to the Phase II effort.

TERAOPS
1051 Cragmont Ave
Berkely, CA 94708
Phone:
PI:
Topic#:
(510) 548-3514
Tibor Kozek
NAVY 97-114
Title:Analogic CNN Engine for Muli-Spectral Fusion
Abstract: TeraOps Corporation proposes to develop a suite of algorithmic techniques and corresponding hardware implementation based on the powerful CNN technology to address Navy requirements for multi-band image fusion in real-time. TeraOps will exploit the unique architecture of the CNN supercomputer-on-a-chip to implement spatial-temporal image processing algorithms for the fusion of multi-band sensory data to be used in advanced targeting systems. These algorithms will draw upon studies of biological image processing systems as well as on CNN models for color constancy and color visualization developed earlier by TearOps researchers. CNN is a massively parallel locally interconnected dynamic array computer capable of performing more than 10 to the 12 operations per second which allows it to perform image processing operations three orders of magnitude faster than conventional digital signal processors. Its very high processing speed is essential in executing computationally intensive image processing operations in real-time at high resolutions. The CNN image processing package including associated hardware will be small enough to fit in the limited space of an image processing pod and will consume very little power due to its highly efficient VLSI implementation. Thus, the proposed work combines the efficiency and speed of the hardware implementation and the algorithmic power of CNN technology to solve the real-time image fusion problem.

IMETRIX, INC.
P.O. Box 152
Cataumet, MA 02534
Phone:
PI:
Topic#:
(508) 564-6460
Ms. Barbara Fletcher
NAVY 97-115
Title:Stand Alone ROV Trainer
Abstract: A remotely operated vehicle (ROV) pilot is faced with a complex task, with few tools available for training and mission planning. Training is generally "on-the job", and is often limited by the availability and high cost of deploying equipment.

CAMBER CORP.
635 Discovery Dr.
Huntsville, AL 35806
Phone:
PI:
Topic#:
(703) 866-5404
Yi Bian
NAVY 97-116
Title:Hard Target Penetrator End-Game Guidance
Abstract:Precision strike weapons have been proved repeatedly to be able to provide substantial tactical advantages. Much attention in the past has been focused on improving the strike position accuracy. To penetrate a consolidated hard target, however, the missile velocity and impact angle also plays a significant role. This raises the requirement for the capability to precisely control the missile attitude. Traditionally, missile attitude is determined by use of inertial systems. High accuracy inertial systems, however, are expensive and all inertial systems have the drawback that their errors accumulate over time. Camber Corporation proposes to use kinematic GPS technology to develop the capability of attitude determination. The GPS system has the advantage of being able to provide high accuracy at a fraction of the unit cost compared to the inertial system. In contrast to the inertial system, attitude determination using GPS is drift free - its error is bonded and remains unchanged over time. Kinematic GPS will not only increase the attitude control accuracy; it will also extend its application to weapon systems that are prohibited from using the inertial system due to cost constraint. Camber Corporation proposes to use kinematic GPS technology to develop the capability of attitude determination. The GPS system has the advantage of being able to provide high accuracy at a fraction of the unit cost compared to the inertial system. In contrast to the inertial system, attitude determination using GPS is drift free - its error is bonded and remains unchanged over time. Kinematic GPS will not only increase the attitude control accuracy; it will also extend its application to weapon systems that are prohibited from using the inertial system due to cost constraint.

MAYFLOWER COMMUNICATIONS COMP., INC.
900 Middlesex Turnpike, Building 8
Billerica, MA 01821
Phone:
PI:
Topic#:
(508) 436-9600
Triveni N. Upadhyay
NAVY 97-117
Title:Virtual Laser- Kinematic Relative GPS-Based Navigation and Covert Communication (KREGNACC) System for Terminal Guidance
Abstract:The U.S. Navy has identified a need to develop a passive precision target location and terminal guidance from Spotter to Projectile capability which can deliver 1 meter CEP relative navigation-to-the-target accuracy. The targeting sensor, referred to as Virtual Laser, should be able to range to a moving target and provide the target coordinates in real-time to a projectile/vehicle. The objective of this SBIR Phase I Study is to analyze the feasibility of the proposed GPS/INS-based targeting, relative navigation and communication data link system which can meet the accuracy goal, be packaged in a small size, and produced at low-cost, thereby eliminating the requirements of a terminal seeker in most precision guided munition applications. The Phase I study will analyze various sensor-target scenarios, model their error sources and evaluate their relative navigation performance using Mayflower novel dual-stage carrier phase processing algorithm and inertial error calibration techniques. An important focus of the Phase I research is to demonstrate the feasibility of the proposed data link to provide the communications connectivity. The Phase II effort will develop a brassboard data link, integrate it with a miniature GPS/INS package, and validate the Virtual Laser concept with a hardware-in-the-loop simulation incorporating the projectile GN&C algorithms.

NAVSYS CORP.
14960 Woodcarver Rd.
Colorado Springs, CO 80921
Phone:
PI:
Topic#:
(719) 481-4877
Alison K. Brown PhD
NAVY 97-117
Title:SPOTter/Sensor (SPOTS) Targeting system using relative kinematic GPS processing
Abstract: The purpose of this SBIR is to demonstrate precision targeting to enable terminal guidance of munitions from Spotter-to-Shooter, in a "Virtual Laser" mode of operation. This requires the Spotter to be able to precisely determine the target coordinates (and munition aim point) in 3-D coordinates, to allow for automatic call for fire and automatic target handoff to the weapon system. To support a targeting accuracy of 1 meter at a range of 1 km from the target, the SPOTS system must be able to determine range to the target to an accuracy of 1 meter, and bearing to an accuracy of 1 mrad. In the proposed system architecture an innovative "relative kinematic" algorithm is described. Simulation results have shown that this can support 1 mrad attitude accuracy in a man-portable targeting system by optimally integrating data from a GPS receiver and Micro-Electro- Mechanical (MEM) inertial measurement unit (IMU). Under this Phase I contract, we will develop and demonstrate the attitude accuracy possible with the relative kinematic GPS/inertial algorithms using in-house test equipment. Under Phase II, a man-portable SPOTS unit will be fielded and tested.

AMERICAN ELECTRONICS, INC.
8229 Boone Blvd, Suite 200
Vienna, VA 22182
Phone:
PI:
Topic#:
(703) 883-0506
Dr. Joseph T. Siewick
NAVY 97-118
Title:Compact Sensors and Guidance for Mid-Caliber Naval Guns
Abstract: One of the most important applications of mid-caliber (5-inch) Naval guns is in meeting the defensive requirements of the Close-In-Weapon-System (CIWS). The function of the CIWS is to engage and defeat aircraft and cruise missile threats that have avoided or survived the extended area defenses. AMELEX offers to explore combining a guidance and control/divert system with a radar or IR seeker in the five-inch munition to provide a hit probability approaching 100%. PIN photodetector's active area. PIN electroabsorptive devices are attractive for military applications because the technology is mature and the costs are low. A preliminary operational energy estimate of an electroabsorpative PIN diode structure is low, essentially that of charging a capacitor of comparable dimensions. This energy is recoverable from the capacitor structure of a reverse biased PIN. The power required to sustain the emissivity variation is equal to the leakage currents through and voltage across the reverse biased PIN structure, and this too seems relatively low compared to the power of several alternative methods.

INTELLIGENT AUTOMATION, INC.
2 Research Place, Suite 202
Rockville, MD 20850
Phone:
PI:
Topic#:
(301) 590-3155
Chiman Kwan
NAVY 97-119
Title:Real Time Infrared Thermal Signature Detection Using Neural Networks
Abstract: Thermal imaging is a simple and useful technique for post mission analysis. Combining with health monitoring and fault diagnostic techniques, the method can reduce false alarms and improve the diagnostic capability of naval surface, subsurface, and air assets. It can also be used for detecting corrosion, erosion, and hot spots due to bearing degradation. However, there is a fundamental problem in thermal imaging. There is too much data and it must be processed in real time. There is a technology, often used in other domains, to reduce the amount of data in the image to an alternative set of data which represents the most important features in the image. This technology is called Principal Component Analysis (PCA). Using a dynamic PCA, the amount of data which would need to be searched for the target of interest can be greatly reduced. The reason PCAs have not been used for this application is that dynamically computing the Principal Components from an image was too time consuming. Each component had to be computed independently - first the first component, then the second component, then the third component, etc. Since the computation of each component is itself an iterative process, real-time results could not be achieved. Intelligent Automation, Incorporated (IAI) has solved this problem. With our approach, we will be able to compute the Principal Components of an image in real-time. Our innovation allows us to compute all the Principal Components in parallel, with all values converging at the same rate, so that final values are achieved for all components simultaneously instead of serially. This allows us to perform dynamic PCA in real-time and therefore apply this powerful technology to high speed thermal image processing. Intelligent Automation, Incorporated (IAI) has solved this problem. With our approach, we will be able to compute the Principal Components of an image in real-time. Our innovation allows us to compute all the Principal Components in parallel, with all values converging at the same rate, so that final values are achieved for all components simultaneously instead of serially. This allows us to perform dynamic PCA in real-time and therefore apply this powerful technology to high speed thermal image processing. Intelligent Automation, Incorporated (IAI) has solved this problem. With our approach, we will be able to compute the Principal Components of an image in real-time.

THRESHOLDS UNLIMITED, INC.
Box 425, 2113 Sunnyside Road
Findley Lake, NY 14736
Phone:
PI:
Topic#:
(716) 769-7781
Karen A. Weinert
NAVY 97-119
Title:Thermographic Technology Development for Real-Time Fault Detection
Abstract:High resolution infrared (IR) thermal imaging technologies have a proven ability to detect faults and pre-fault conditions in machinery and structures. Through many hours of video and digital analysis and documentation, Thresholds Unlimited, Inc. has established that observation and analysis of thermal patterns (in real time) can provide go/no-go checks and can simplify the condition monitoring process while providing diagnosis of machinery and structural members while the vehicle systems are in operation. This technique holds great promise for reducing false fault identifications and improving condition monitoring activities throughout the Navy. The cost of maintaining aging fleets of air, sea, and land vehicles can be reduced using thermography and other conditions based monitoring techniques. This process will significantly reduce personnel risk and costs with aging systems.

AMERICAN GNC CORP.
9131 Mason Avenue
Chatsworth, CA 91311
Phone:
PI:
Topic#:
(818) 407-0092
Ching-Fang Lin
NAVY 97-120
Title:Fuzzy Neural Control Design Software for Multiple Effector Control Systems
Abstract: In this Phase I project, a fuzzy neural control design software tool will be developed with the Genetic Algorithms (GAs) based adaptive fuzzy neural control method to enhance the performance and autonomous control ability of multiple effector control systems. First, a fuzzy logic control algorithm will be developed. Second, the GAs will be used to form a self-learning and self-tuning mechanism to tune the membership parameters and modify the rules. A fuzzy neural algorithm will also be developed. With the GAs based adaptive fuzzy neural control system the performance of the multiple effector control systems will be improved significantly in the presence of disturbances and uncertainties. Finally, a software toolkit will be developed and commercialized for the design, analysis and demonstration of genetic algorithms based adaptive fuzzy logic control systems. The software will be developed using the software engineering, object-oriented and Windows programming techniques. It provides a graphical user-friendly interface and design and analysis functions for autonomous intelligent control. In order to demonstrate the effectiveness of the toolkit, it will be used to design an autopilot for a tactical ballistic missile. Then, nonlinear 6 DOF simulation will be conducted to evaluate the design.

BARRON ASSOC., INC.
3046A Berkmar Drive
Charlottesville, VA 22901
Phone:
PI:
Topic#:
(804) 973-1215
David G. Ward
NAVY 97-120
Title:Intelligent Reconfigurable Control for Systems with Multiple Effectors
Abstract: Many modern systems rely on multiple innovative actuators and effectors to improve performance, versatility, and survivability. In systems where several actuators or actuator combinations are capable of affecting the behavior of a single controlled varaible, an opportunity exists to incorporate non-traditional features in the control law, including post-failure reconfiguration and optimization of high-level system functions (e.g., overall efficiency). Often, one requires an intelligent nonlinear control algorithm to achieve these benefits. This proposal describes such an algorithm based on neural network system modeling, robust on-line system identification, and receding-horizon optimal control. This algorithm has been evaluated favorably in piloted simulations and F-16 flight tests (including simulated impairments), and it is currently being applied to a tailless aircraft having over 14 independent effectors. The proposed Phase I research will (1) develop a prototype control system design toolkit based on the algorithm, (2) extend these algorithms with a control allocation module that provides desired closed-loop performance while achieving higher-level mission objectives such as reduced drag or low observability, and (3) demonstrate the algorithms and the prototype software tool on a complex system application of interest to the Navy.

SCIENTIFIC SYSTEMS CO., INC.
500 West Cummings Park Suite 300
Woburn, MA 01801
Phone:
PI:
Topic#:
(617) 933-5355
Raman K. Mehra/M. Gopinat
NAVY 97-120
Title:Intelligent Control Algorithms and PC-Based Software Tool Development for Multiple Effector Control Systems
Abstract: The main objective of the proposed work is to develop systematic control design procedures and simulation modules for complex uncertain multiple-input multiple-output (MIMO) systems. Scientific Systems proposes to integrate these modules within a highly flexible and user-friendly Intelligent Control Design Tool (ICDT) for Matlab that will include the design of System Identification (SI) and Model Predictive Control (MPC)-based adaptive control algorithms, and intelligent supervisory control modules based on the system response and fuzzy logic. MPC framework will enable the designer to develop efficient control algorithms for both linear and nonlinear models in the case of hard constraints on control inputs, system outputs, and states. The presence of system nonlinearities and uncertainties will be addressed by both the extensions of several existing identification techniques to nonlinear models, and by the development of MPC-based neural network identification and control algorithms. To preserve robustness under large perturbations, uncertainties, and sensor and actuator failures, the suggested control system will have substantial reconfiguration capabilities introduced by supervisory control based on on-line adaptation, fuzzy rules and Fault Detection and Isolation (FDI) mechanisms. The feasibility of the intelligent MPC algorithms will be tested through simulations of Eagle Eye UAV, or other Uninhabited Combat Air Vehicle (UCAV) model recommended by the Navy. Prof. K.S. Narendra of Yale University will provide technical consulting support.

ACCURATE AUTOMATION CORP.
7001 Shallowford Rd.
Chattanooga, TN 37421
Phone:
PI:
Topic#:
(423) 894-4646
RICHARD AKITA & ALIANNA M
NAVY 97-121
Title:BIOLOGICALLY INSPIRED PROCESSOR FOR ALL-SOURCE DATA ASSOCIATION AND FUSION
Abstract:This project will develop improved sensor fusion of underwater surveillance and fire control related ]data based upon biologically inspired data association and sensor fusion techniques. In this _proposed SBIR, AAC will examine under-sea surveillance requirements for providing contact data hassociation for two or more contacts in the littoral environment. We will analyze biologically-inspired [techniques to perform all source data assimilation, fusion and correlation, and develop an darchitecture that will easily integrate with the Navy's Neurally Inspired Contact Estimation (NICE) \component. We will also develop a neural network-based system design inspired by biological fphenomenon, to be used in the all-source real-time data assimilation, fusion and correlation process; \develop a Phase II plan for the development of the Biologically Motivated Neural Processing cArchitectures for All-Source Data Association and Fusion; provide a test plan and deliver a final .report. RWe propose to develop the advanced Biologically Motivated Neural Processor (BMNP).ein a prototype COTS workstation. In this SBIR, AAC will develop the workstation architecture and the \capability to incorporate a number of biologic sensor fusion models. This work will lay the ffoundation for a Phase II program in which AAC will perform the development of the "fully functional" prototype system.

DECISION DYNAMICS, INC.
4600 East West Highway, Suite 4
Bethesda, MD 20814
Phone:
PI:
Topic#:
(301) 657-8500
Louis Edward Alfeld, ScD.
NAVY 97-122
Title:Affordability Measurement and Prediction Technologies
Abstract:This proposal builds upon work currently underway for the Office of Naval Research's Acquisition Reform Office. This body of work known as SNAP (Simulating New Acquisition Processes), consists of five interconnected simulation models that make up a "virtual acquisition process." The models, developed using the system dynamics methodology, can quantify the long-term tradeoffs among cost, performance and schedule measures. SNAP output includes key decision variables allowing program managers to test the consequences of alternative "what-if?" scenarios and to place high confidence in the resulting priorities for affordability actions. Although SNAP development is well underway, SNAP models lack funding to incorporate an essential feature -- Evolutionary Algorithms (EAs). EAs mimic biological evolution by repeatedly "mutating" selected parameter values and simulating the model to produce a generation of project solutions. During simulation the EA automatically evaluates tradeoffs among cost, schedule and performance variables, using feedback to alter both tasks and resources in a search for the most effective result. The addition of EAs to SNAP will result in an incredibly advanced affordability prediction tool that will not only correctly predict the total cost of ownership for any system but will also enable program managers to evolve better and better program plans with CAIV (Cost as an Independent Variable) guidelines.

GLOBAL TECHNOLOGY CONNECTION, INC.
2690 Spencers Trace
Marietta, GA 30062
Phone:
PI:
Topic#:
(770) 971-7072
Dr. A.B. Thakker, P.E.
NAVY 97-122
Title:Affordability Measurement and Prediction Technologies
Abstract: A «roadmap for affordability« will be developed in Phase I based on Robust Design Simulaton(RDS) which will be applied in Phase II to address affordability design tradeoffs for propulsion system technologies in V/STOL aircraft. The V-22 tilt rotor aircraft with the T-406 engine will be used as the baseline V/STOL aircraft for affordability measurement verification and validation of the RDS. The proposed research will serve as the Current Development linkage between the current ONR initial Research and Theoretical Development Program, being conducted by universities and the Verification and Validation effort involving industry and Navy project offices. The integration of synthesis/sizing models with life cycle cost (LCC) analysis for V/STOL aircraft will be accomplished in Phase II. Historical databases in the synthesis/sizing models and LCC analysis will be replaced with data generated from physics-based disciplinary models and activity and process-based cost models, respectively. Affordability design tradeoffs for propulsion system technologies applied to the V-22/T406 baseline will be assessed using the RDS as a prediction technology in Phase II.

PROMETHEUS, INC.
103 Mansfield Street
Sharon, MA 02067
Phone:
PI:
Topic#:
(401) 849-5389
James S. Byrnes
NAVY 97-122
Title:Affordability Modeling in an Uncertain Environment
Abstract: We propose to create a technology to improve Naval acquisition planning in a partially known environment, thereby reducing the negative impact of uncertainty, while simultaneously incorporating affordability as a fundamental constraint. Our decision support system will be flexible in its assumptions to facilitate replanning in response to changes faced by planners and warfare systems architects. It will contain a genetic algorithm based optimization module, to enable the efficient determination of near optimal decisions despite enormous numbers of alternatives and numerous complications involved in their evaluation. This planning support tool will be based on our theory of dependency modeling, which we have successfully applied to Naval combat systems assessment and Air Force aircraft allocation problems. The proposed Phase I research will enable the adaptation of our MAAP technology, developed under Air Force sponsorship, to assist in making technological decisions that impact the affordability and performance of current and projected Naval systems. This will form the foundation for a Phase II decision aid tool that will allow acquisition planners, be they Navy, other military, or commercial, to evaluate and compare candidate strategies for the optimal and affordable allocation of assets to varied and often uncertain system requirements.

SOFTWARE PRODUCTIVITY SOLUTIONS, INC.
122 4th Ave.
Indialantic, FL 32903
Phone:
PI:
Topic#:
(407) 984-3370
Jeffrey A. Heimberger
NAVY 97-122
Title:Project Stoddert, A System Dynamics Model of Affordability Using Utility Theory
Abstract:In a time of decreasing defense budgets, the long-term affordability of different Navy warfighting and support systems is an increasingly important consideration when deciding between competing systems, and is also increasingly more difficult to objectively measure. SPS proposes an innovative approach for developing a model that measures the affordability of existing systems and predicts the affordability of alternative systems. Our proposed Project Stoddert honors Mr. Benjamin Stoddert, the first Secretary of the Navy. Our approach will establish the theoretical bases for developing executable models to measure the affordability of complex weapon systems. We will employ a unique combination of system dynamics and utility theory to capitalize on the strengths of these two powerful decision analysis techniques. The key innovative aspects of our approach are: (1) using a system dynamics model which can employ qualitative data as well as quantitative data to measure affordability, and (2) applying utility theory to provide users a formal method of determining their inputs to the model. This approach has the best chance for success and for advancing the state-of-the-art in affordability measurement and prediction because it uses two established decision analysis techniques to attack the most important aspects of the affordability measurement and prediction problem.

CAPE COD RESEARCH, INC.
19 Research Rd.
East Falmouth, MA 02536
Phone:
PI:
Topic#:
(508) 540-4400
Francis L. Keohan
NAVY 97-124
Title:New Multi-Functional Vapor Phase Corrosion Inhibitors
Abstract:A new family of surface-active organic compounds is proposed for formulating multi-purpose vapor phase corrosion inhibitors (VCI's). The proposed research explores the feasibility of applying state-of-the-art surface science with the concepts of molecular simulation and molecular self assembly to produce a new class of corrosion inhibitors. The ultimate objective is to develop a family of VCI's that readily volatilize at ambient temperature, pose little toxicological or environmental hazard, displace surface water from metallic substrates, effectively prevent the corrosion of ferrous and nonferrous metals and self-assemble into coherent coatings for long-term protection. In the proposed study the candidate precursor materials for these VCI's will be identified, chemically derivatized for improved volatility, the compatibility of different compounds predicted by computer simulation, and structure-property profiles determined. The ability of selected experimental VCI blends to inhibit the corrosion of ferrous and nonferrous metals in enclosed environments will be demonstrated. The anticorrosive properties will be measured by traditional accelerated tests such as salt spray exposure, enclosed humid environment exposure, and electrochemical impedance spectroscopy (EIS).

FAKESPACE, INC.
241 Polaris Ave.
Mountain View, CA 94043
Phone:
PI:
Topic#:
(415) 688-1940
Ian McDowall
NAVY 97-125
Title:A Multi-User Deployable Virtual Workbench
Abstract: Fakespace proposes to develop a feasible system for use in a Naval environment which permits two users to see stereo images on a virtual workbench simultaneously. NRL and other groups have implemented virtual workbenches which display 3D models on a table top. The proposed development effort will permit several users (initially two) to simultaneously view and interact with the model. The technical approach will build on expertise at both NRL and Fakespace. NRL's applications expertise and understanding of the Navy's needs will be essential to creating an effective solution. Insights gained by Fakespace in the development of the first two-user stereo system will permit a focusing of effort towards systems design issues which meet the Navy's specific objectives. The understanding of end user needs together with appropriate technology experience will enable Fakespace to synthesize an excellent solution. In addition to forming a foundation for work in later Phases, the systems design work accomplished as part of Phase I will impact the development of products for the CAD, medical, and display fields.

PHYSICAL SCIENCES, INC.
20 New England Business Center
Andover, MA 01810
Phone:
PI:
Topic#:
(508) 689-0003
Steven A. Africk
NAVY 97-126
Title:Structural Health Monitoring Using Fiber Optic Sensing
Abstract: A system for structural health monitoring of ships using fiber optic sensors will be developed. The baseline system to be investigated is a proprietary spread spectrum interrogation system under development by Lucent Technologies, which will support monitoring of strain, temperature, and potentially other parameters, continuously in space and time. Ideally, this system will be able to interrogate the intrinsic sensitivities of fiber to strain to measure mechanical strain and temperature. If greater sensitivity is required, Bragg grating reflectors will be integrated into the system. A test rig will be built to simulate hull and decking areas which are to be monitored by the system, and the potential performance of bare fibers, fibers with intrinsic Bragg grating sensors, and telemetry systems based on proprietary Lucent technology and variations on that technology, including wavelength multiplexing, will be tested with static and slowly varying structural strains. A system capable of meeting Navy requirements and which can be interfaced with other automated systems will be defined and a plan to demonstrate this system in Phase II will be developed.

SYSTEMS PLANNING & ANALYSIS, INC.
2000 N Beauregard St., Suite 400
Alexandria, VA 22311
Phone:
PI:
Topic#:
(703) 578-6332
Peter C. Chen, Ph.D.
NAVY 97-126
Title:Structural Health Monitoring Using Fiber Optic Sensing
Abstract: Systems Planning and Analysis, Inc. (SPA) proposes to develop an open architecture structural health monitoring system for naval ships based on fiber optic Bragg grating and digital telecommunications technologies. This dual-purpose system will allow for simultaneous sensing and transmission of existing analog data streams afloat (i.e., communications, fire control, resistance strain data, etc.) and digital strain data from fiber strain sensors distributed along multiple sensing fibers. Using wavelength division multiplexed sensors along each fiber path, structural strains of the primary hull and other substructures will be measured to provide real-time, on-line health monitoring of the vessel during operations. During the proposed effort, a prototype system will be built with a 2-sensor array of 4 sensors each, 2 transmission nodes, and a 100m data bus consisting of Mil-Spec 85049 digital cable. SPA will test this system on a dynamically-scaled ship hull structure at a bandwidth of 20 Hz, while simultaneously transmitting an analog single frequency TTL current modulation function (to simulate analog data transmission). SPA will develop a software package to record and process the sensor data for real-time assessment of the hull to provide predictions of the remaining life. SPA will interface the prototype system with the naval structural assessment code, ULTSTR, in the Phase I option, to facilitate acceptance of the system in the fleet.

DYNAFLOW, INC.
7210 Pindell School Road
Fulton, MD 20759
Phone:
PI:
Topic#:
(301) 604-3688
Dr. Ramani Duraiswami
NAVY 97-127
Title:High Fidelity Ocean Surf Zone Model for Use in USMC Simulators
Abstract:In the proposed research Dynaflow, Inc. and Nichols' AME propose to develop a high fidelity model of the surf-zone for implementation in marine corps simulators for the Advanced Amphibious Assault Vehicle. Phase I research will concentrate on identifying those elements of a surf-zone model that must be specified so that accurate forces are generated by the simulator model. Particular attention will be paid to wave induced forces, breaking wave forces, and slamming forces, and to providing good models for the engine propulsion and control subsystems of the vehicle. The model will be able to take advantage of inputs such as information on wave spectra, breaking wave spectra, cartographic information, and topographic data. Gaps in the model proposed will identified, and model tests and computational fluid dynamic simulations to fill these gaps proposed. System Identification techniques will be surveyed, and a technique chosen to use the acceptance trials data to enhance the simulator fidelity. In the Phase I option a simulator fidelity. In the Phase I option a simulator wil be implemented using the collected information, and the AME Virtual Ship software to provide a baseline for Phase II. Phase II will perform the tests and simulations necessary to develop an ingrated simulation software for the AAAV dynamics, that includes the enhanced sur-zone model. The model will be validated and demonstrated for inclusion in future DoD efforts in Phase II. The proposing companies and key personnel have decades of experience in the fields of developing marine simulators, model testing, computational fluid dynamics, and system identification.

TEXAS RESEARCH INSTITUTE AUSTIN, INC.
9063 Bee Caves Road
Austin, TX 78733
Phone:
PI:
Topic#:
(512) 263-2101
Dr. Michael Dingus/Mr. Jo
NAVY 97-130
Title:Commercial Digital Camera Environmental Protection
Abstract: Digital cameras offer extraordinary advantages in reconnaissance applications. They provide critical real time imaging capabilities not available with film; images can be transmitted electronically with no time delay. Unfortunately, commercially available digital cameras cannot withstand the conditions encountered by a Marine Expeditionary Force Reconnaissance Team (MEFRT). A protective housing is needed to shield the camera from harsh environmental and physical challenges. Texas Research Institute Austin, Inc. (TRI/Austin) will develop advanced structural polyurethane formulations that will be used in the design of a rugged, waterproof, saltwater resistant, shock resistant, camera housing. A prototype housing that allows control of all camera functions will be prepared, including component drawings, a parts list, and assembly and operating instructions. A final report will be prepared, and the prototype digital camera housing will be delivered to the sponsor.

APOLLO ENTERPRISE
18019 Sky Park Circle, Suite F
Irvine, CA 92614
Phone:
PI:
Topic#:
(714) 756-3111
Alice Gheen
NAVY 97-131
Title:A Compact, High Quality Anamorphic Adapter for COTS Infrared Camera
Abstract: We propose to design and fabricate a high performance anamorphic adapter for commercial off-the-shelf (COTS) infrared array cameras. With this anamorphic system, the viewing angle along the preferred axis can be maximized and the viewing angle along the orthogonal axis can be diminished while an equal projected area per pixel can be maintained. The viewing angles for the proposed system with an isothermal focus will be 150 degreex15 degree. The anamorphic system will be designed and made so that best possible image quality can be obtained when used together with a COTS hardware. The system are expected to be compact in structure, easy to realize and relatively low in cost. By incorporating the innovative design of the anamorphic optical system into the wide-field-of-view adapter, it is anticipated that all the Navy requirements for the IR imaging applications can be met. The objective new system represents a breakthrough, enabling technology for wide-angle IR imaging for distended scene with high imaging quality by allowing recording, playback and data analysis using generic equipment. The proposed high performance wide-field-of-view anamorphic adapter will find many dual applications and will greatly expand the usage of COTS infrared cameras.

SMART DISPENSING DEVICES, INC.
508 Oreland Mill Road
Oreland, PA 19075
Phone:
PI:
Topic#:
(215) 884-6909
Anthony Passamante
NAVY 97-132
Title:Detection and Classification Using Fractal Models: Analysis,
Abstract: Methods are developed and investigated which will exploit the fractal and nonlinear characteristics of measured sensor data. Novel autoregressive and fractal signal processing methods are applied to the detection and classification of pertinent signals. Autoregressive and other techniques are generalized to take advantage of potential nonlnear and fractal properties of data. Furthermore, it is essential to have objective measures of processor performance on which to base assessments. Toward this end, we calculatee statistically correct and objective measures of detection and classification. Receiver operating characteristics (ROC) curves are calculated to quantify detection results; classification results are quantified by the Bayes error calculated using the K-th Nearest Neighbor method.

VOCAL POINT, INC.
300 Brannan Street, Suite 604
San Francisco, CA 94107
Phone:
PI:
Topic#:
(415) 896-6300
Ronald G. Benson
NAVY 97-132
Title:Speech-Recognition Techniques for Robust Acoustic Signature Identification
Abstract: Military target vehicles of different models have unique acoustic signatures. These signature can be used for detection and for identification. One approach is to analyze the signature in the spectral domain, using the Fourier transform, and comparing new sound samples with known templates. Problems arise when signatures vary or are corrupted by noise. The problem of signature recognition has much in common with speech recognition, an active field for several decades. We propose to apply traditional and novel speech-recognition techniques to the identification of acoustic signatures. Preliminary tests in this proposal, applied to military vehicle signature data, show very high accuracy rates. In Phase I we will first develop "traditional" speech recognizers, which use non-Fourier features that have proven more robust, such as cepstral and linear-predictive-coding (LPC) coefficients. As back ends, we will investigate both hidden Markov models (HMMs) and neural networks. The algorithms will be modified to fit the problem domain in terms of frequency ranges and time scales. We will also apply more recent algorithms: the auditory image model (AIM) mimics the human auditory system; learning vector quantization (LVQ) is a novel neurally inspired, Bayesian optimal algorithm. The systems will be compared to the more traditional Fourier-based approach and evaluated for noise robustness. In Phase II, we will develop a noise-robust, real-time system to be evaluated in the field.

INTERCONNECT SYSTEMS SOLUTION (ISS)
22691 Lambert Street
Lake Forest, CA 92630
Phone:
PI:
Topic#:
(714) 587-0628
Khan Kibria
NAVY 97-133
Title:Real Time COTS Chip for Unified Avionics Interconnect
Abstract:This proposal covers the first phase of three work phases: Phase I: a) study the Serial Express and SCI-RT protocols, b) develop the adaptations necessary for real-time applications, c) simulate them, d) choose the best protocol, e) determine the requirements, feasibility, and cost of standard cell and a prototype ASIC design, and f) determine the basic requirements, feasibility and cost of a VMEbus-based SCI/SX bridge, as a demonstration vehicle; Phase II: Design a standard cell ASIC component, prototype chip, and VMEbus-based SCI-RT/SX bridge; Phase III: Transition the standard cell and prototype ASIC designs to a commercial chip fabricator for production. Phase I work will take advantage of previous or current work, done by Interconnect Systems Solution and Edgewater Computer Systems, Inc.: ISS has designed commercial SCI chips and is about to complete a SX chip design. ISS will be responsible for Phase I items d), e) and f), above. ECSI wrote the original proposed SCI-RT draft specification and was key in starting the SCI-RT Working Group. ECSI is currently carrying out a study of the SCI-RT and SX protocols, for the Navy, which will be the basis for Phase I items a), b), c), d) and f), above.

DARYOUSH GEMS, INC.
250 South Roberts Road
Bryn Mawr, PA 19010
Phone:
PI:
Topic#:
(610) 526-9012
Warren A. Rosen, Ph.D.
NAVY 97-134
Title:Low-Cost High-Speed Optical Links for Advanced Avionics
Abstract: Daryoush GEMS proposes to research and demonstrate the feasibility of developing a low-cost, low-latency serial optical link capable of supporting data transfers at data rates up to 8 Gb/s. The link will be based on a low-cost 10 GHz transceiver being developed by Focused Research (who will act as subcontractor on this project) and a low-cost injection-locked phase-locked loop technology developed by Daryoush GEMS. In addition, a low-cost encoder/decoder will be designed, modeled and simulated and available technologies for low-cost high-speed serializer/deserializers will be evaluated and a suitable technology selected for subsequent implementation. The link will be designed to support a high-performance commercial standard such as Scalable Coherent Interface, Serial Express, or Fibre Channel. Advanced modeling and simulation techniques will be used to model both the protocol and hardware to match the link characteristics to the protocol in order to achieve optimum throughput, latency, and system cost.

PRINCETON ELECTRONIC SYSTEMS, INC.
P.O. Box 8627
Princeton, NJ 08543
Phone:
PI:
Topic#:
(609) 799-7860
Reza Saedi, PhD
NAVY 97-134
Title:Low-cost High-Speed Optical Links for Advanced Avionics Data networks
Abstract: Fiber optic links are becoming integral part of the high speed communications and signal processing environment. With excellent immunity to EMI, almost unlimited bandwidth and low loss over large distances, digital and analog fiber optical links are preferred for many DOD applications. The incorporation of Wavelength Division Multiplexing (WDM) through the same single mode fiber is able to multiply the data rates through the fiber without the need to install additional fibers for the links. The objective of this research is to develop high performance digital links in the range of 4-8Gb/s or higher data rates with low noise, high dynamic range, low error rate and stability. PES has a strong background in developing high performance analog and digital fiber optical links. In phase I of this project, PES will study the Navy's need in detail and design a complete COTS components and software protocol based solution for the system. In addition , we will analyze the various aspects of the design of the digital fiber optic link in terms of loss, frequency response, noise figures, dynamic range and link latency. On the basis of the analytical prediction we will design,fabricate,charecterize and demonstrate a 4-8Gb/s directly modulated link usung availble laser diodes and photo-detectors. In phase II, we will extend our design to fabricate the state of the art transmit/receive modules as well as a complete link using COTS laser diodes, detectors and protocol for the broadband operation from 4 to 8 Gb/s or higher speed. The links will be low cost and can be made available to Navy at costs significantly lower than $1500 each. The fiber optic links will be operable over the MIL temperature range and will be ruggedized to MIL specifications in phase II. The links will be manufactured at low cost in phase III.

STOTTLER HENKE ASSOC., INC.
2016 Belle Monti Ave
Belmont, CA 94002
Phone:
PI:
Topic#:
(415) 650-7242
Alexander Davis
NAVY 97-135
Title:Artificial Intelligence Techniques for Ship Motion Forecasting
Abstract: We propose an innovative combination of Artificial Intelligence (AI) techniques to implement a real-time ship motion forecasting system, to augment current aircraft launch and recovery support systems in support of Dynamic Interface operations. This system will improve on previous prediction system efforts by introducing innovative techniques to generate actual ship motion forecasts in real-time with an immediacy commensurate with pilot and crew reaction times. It will provide sufficient support to significantly increase efficiency and safety of equipment and personnel during operations, for which previous work has been insufficient. SHAI is uniquely qualified to solve this problem by our experience in a broad range of AI paradigms, many of which promise innovative applicability to this task. These include model-based reasoning, case-based reasoning and neural networks. Further, we have acquired extensive knowledge about Dynamic Interface operations and physical system behavior prediction in general in past projects. In Phase I, we will study the state of the art of ship motion forecasting, determine the data sources available on current Naval aviation ships, acquire and study ship motion time histories, and develop a limited prototype which proves the feasibility of our approach by actually implementing the techniques that we develop to forecast ship motion.

SYSTEMS TECHNOLOGY, INC.
13766 S Hawthorne Blvd.
Hawthorne, CA 90250
Phone:
PI:
Topic#:
(310) 679-2281
Peter M. Thompson, Ph.D.
NAVY 97-135
Title:Advanced Ship Motion Forecasting for Expanded Aviation Operations
Abstract: An innovative approach to Ship Motion Forecasting Systems (SFMS) based on Neural Net (NN) technology is proposed. Preliminary results using NNs with limited amounts of recorded ship motions indicate superior performance over classical forecasting techniques. The proposed Phase I effort will develop improved versions of the NNs and will demonstrate their performance on a significantly larger set of recorded ship motion data. The ship motions will be representative of different types of naval ships operating in various sea states. The Phase I effort will also develop performance metrics and confidence levels. For example, the estimated pitch at 10 seconds has a 90% chance of being within 0.25 degrees of the actual pitch. A software and hardware specification for a real time SFMS will be written during the Phase I Option, and a PC-based prototype system will be built and verified during the Phase II effort. Specialized NN or DSP hardware will be used if required for real time operation. The prototype system will include a hardware interface for current generation Shipboard Visual Landing Aid Systems, and will include a user interface with textured 3D graphics.

CHARLES RIVER ANALYTICS, INC.
55 Wheeler St.
Cambridge, MA 02138
Phone:
PI:
Topic#:
(617) 491-3474
Paul G. Gonsalves
NAVY 97-136
Title:Intelligent Learning Agent System for Advanced Targeting Decision-Aiding
Abstract: The digitization of the tactical military environment with its concomitant increase in accessible information provides an opportunity to enhance decision-aiding capabilities of advanced Navy targeting systems. An approach employing intelligent software agents can facilitate enhanced decision-aiding by automating: the management and dissemination of relevant targeting information and intelligence data; the coordination and communication required for supporting distributed multi-site/multi-user operations; and the interface to tactical C4I systems. Additionally, the learning and tutoring aspects of agent technology can address user customization and on-line in-context coaching. Here, we propose an intelligent learning agent system for advanced targeting decision-aiding. Our system incorporates an off-line learning agent for learning operator responses to given tactical state information and event changes from prior event histories, and an on-line agent that incorporates an inference engine to map current event/state information into actions (in the autonomous decision-making mode) or suggested actions (in the tutoring/coaching mode). Our key innovation is the incorporation of several synergistic technologies: distributed processing and inter-agent communication capabilities, embedded knowledge, inferencing power, and on-line learning and customization of software agents. We see considerable potential for this approach in enhancing Navy advanced targeting decision-aiding systems and addressing future digitized battlespace requirements.

INTERSCIENCE, INC.
105 Jordan Rd.
Troy, NY 12180
Phone:
PI:
Topic#:
(518) 283-7500
Dr. James Castracane
NAVY 97-138
Title:The DMD-NVG: Use of Digital Micromirror Technology for Interference Reduction in Night Vision Systems
Abstract: The use of image intensifiers in night vision systems provides significant advantages for military missions. Extremely sensitive detectors are currently in use which enable the user to operate effectively in starlight conditions. These advantages, however, can be mitigated by bright sources within the field of view. Effects can range from simple loss of contrast to blinding and resulting loss of hardware or personnel. Because of the widespread use of night vision systems, this significant problem demands a solution. InterScience proposes to leverage our current work in high resolution image intensification and micro-opto-electro-mechanical systems (MOEMS) and apply them to the development of a new optical system for interference mitigation in night vision goggles (NVG) to be used for Navy applications. Exploiting recent developments in digital micromirror display (DMD) technology and using a novel optical arrangement, we intend to demonstrate a compact, DMD-based retrofit to NVG systems. With this goal in mind, Phase I and Phase II represent stepping stones to demonstrate the concept and develop a viable version of the DMD-NVG for the Navy. Phase III commercial spin-offs include surveillance, research applications and recreational use in as well as direct technology transfer to other branches of the Armed Services.

LSA, INC.
1215 Jefferson Davis Hwy, Suite 1300
Arlington, VA 22202
Phone:
PI:
Topic#:
(610) 363-5808
Kevin M. Flood
NAVY 97-138
Title:Interference Mitigation in Night Vision Goggle (NVG) Systems
Abstract:LSA has demonstrated the ability to minimize many of the degrading effects of night-vision interference sources through the use of spatial light modulators (SLMs). In our prior work or night-vision devices (NVDs), we realized an increase in the effective dynamic range of an intensified imaging system by a factor of 500. For this program, we intend to bring the same technology to bear for night-vision goggles. Hower, night-vision goggles have additional requirements for interference-mitigation devices in addition to those imposed by other NVD systems. Size and weight considerations, which are of utmost importance to aviators, impose demanding constraints on the design of the interference-mitigation components. Furthermore, counter-counter measures to combat laser jammers require a different approach from those used for blooming control. On this program, we will address the requirements that are unique to NVGs through a combination of proprietary device designs and existing technologies.

ATLANTIC AEROSPACE ELECTRONICS CORP.
470 Totten Pond Rd
Waltham, MA 02154
Phone:
PI:
Topic#:
(617) 890-4200
Dr. Benson Rosen
NAVY 97-139
Title:Advanced Signal Processing and Display Concepts for Airborne Active ASW Systems
Abstract:Atlantic Aerospace proposes to develop an Active Sonar Display Processor (ASDP) to distinguish between submarine and non-submarine contacts in airborne active sonar systems. Accurate active classification of anti-submarine warfare (ASW) sonar echoes is a long standing need for the Navy. Current system performance is based upon an operator viewing the sonar screen and making classifications based upon his experience. For low-frequency active systems with their inherently greater range sensitivity and operating in shallow water, the number of false contacts can overwhelm the sonar operator. The penalties associated with incorrect active classification are great. The ASDP Display Processor will provide significant display features to increase the efficiency of a sonar operator by combining and associating contacts from different sensors and platforms, displaying tracking data for sonar contacts, overlaying bathymetry to indicate likely clutter area, indicating regions of low ensonification at target depths, using icons to indicate classification results and color coding to indicate confidence in classification. This will allow the operator to ignore contacts with high confidence and concentrate on those with low confidence employing single-ping and multi-ping automatic classification clues to aid operator decision-making. Finally, it will allow operators to interact with the display to make final classification decisions.

MULTISPEC CORP.
25 Black Latch Lane
Cherry Hill, NJ 08003
Phone:
PI:
Topic#:
(609) 751-0013
Dr. David Sheby
NAVY 97-139
Title:Advanced Signal Processing for Airborne Active ASW Systems in High Clutter Environments
Abstract:The key to enhanced detection performance of future active ASW sonar systems is the suppression of heavy clutter present in projected areas of operation (e.g., littoral waters). Although improvements can be made in many operational aspects of future systems, the fundamental limitation in performance will remain the heavy clutter, which is now known to be non-Gaussian. The non-Gaussian statistics of the clutter imply that the conventional processing technique of replica correlation (matched filtering) is sub-optimal and may exhibit poor performance since it is designed for Gaussian environments. In order to achieve (near-)optimal performance in these non-Gaussian clutter environments. MultiSpec Corporation has developed a situationally-adaptive technique for non-Gaussian clutter/noise environments to achieve (near-)optimum detection performance via clutter/noise suppression. Preliminary results with real data have shown a ten-fold decrease in false alerts (for the same probability of detection) when MultiSpec's technique is used instead of the conventional replica correlation processing. In Phase I. we propose the thorough testing and evaluation of this innovative signal processing technology using suitable performance metrics of target detection in the context of future airborne active ASW systems. This will include feasibility and cost- effectiveness of system implementation, as well as crisp quantification of the value added to the planned airborne ASW systems. The non-Gaussian statistics of the clutter imply that the conventional processing technique of replica correlation (matched filtering) is sub-optimal and may exhibit poor performance since it is designed for Gaussian environments. In order to achieve (nea In Phase I. we propose the thorough testing and evaluation of this innovative signal processing technology using suitable performance metrics of target detection in the context of future airborne active ASW systems. This will include feasibility and cost-effectiveness of system implementation, as well as crisp quantification of the value added to the planned airborne ASW systems.

RDA, INC.
P.O. Box 49
Doylestown, PA 18901
Phone:
PI:
Topic#:
(540) 349-8083
Ronald H. Buratti
NAVY 97-139
Title:Advanced Signal Processing and Display Concepts for Airborne Active ASW Systems
Abstract: Environmental robustness is a significant challenge facing the extension of the Airborne ASW search mission to littoral environments. As ASW systems are used increasingly in littoral waters, environmentally adaptive signal processing, classification, and display techniques are required if the systems are to be effective in diverse sonar conditions. The Navy has undertaken a number of active classification projects which have not proven to be environmentally robust. When the classifiers are exposed to a new and unknown environment, they suffer a drastic performance reduction. The human operator is more adept than any current automatic active classifier at adjusting to the environmental variability, and should remain central to the classification process. The solution proposed here will provide comprehensible information to the operator without overwhelming him with useless data.

SICOR (SEILER INTERNATIONAL CORP.)
2239 Portside Way
Charleston, SC 29407
Phone:
PI:
Topic#:
(803) 766-5628
Carl S. Holland
NAVY 97-140
Title:AutoLog Large Array Robot for Rapid Cargo Throughput
Abstract: SICOR and the Pennsylvania State University propose to further the technology for an advanced, human interactive, automated material handling/logistics system (AutoLog) or large array robot. The system will robotically traverse large area work a Together with user-centered material handling software and controls, employing advanced virtual tools, the concept enables this large array robot to: + quickly learn and execute single, grouped or repetitive movement tasks, robotically with sophisticated attribute definition and attribute recognition software. + cost less than one third to half the price of comparable mobile crane or bridge crane systems while providing ten times the operating range along with significant positioning dexterity and movement reliability improvements. + provide remote, virtual "Point and Direct" control of operations. + greatly reduce and minimize operator training requirements.

AMERICAN GNC CORP.
9131 Mason Avenue
Chatsworth, CA 91311
Phone:
PI:
Topic#:
(818) 407-0092
Ching-Fang Lin
NAVY 97-142
Title:Universal Intelligent Ferry Control System
Abstract: This SBIR project proposes the development of a Universal Intelligent Ferry Control System to meet the Navy's requirement of more capable causeway ferries of operating in sea state 3. Through employing and integrating advanced control approaches and state-of-the-art computer hardware/software techniques, the control system will have the following features: 1) robust, adaptive and reconfigurable control capability, 2) intuitive, operator friendly and easy to use, and 3) low cost, light weight and small size. To achieve the first feature, an integrated three-level control scheme of nonlinear control, robust control and neural fuzzy control is proposed for linearization, decoupling and compensation of thruster causalities, maximum efficiency, robustness against and adaptivity to the varying length and displacement of causeway ferries with or without load. A friendly, easy-to-use and multiple-mode operator interface will be designed to provide ferry status display, mouse function selection, keyboard parameter input, and joy stick/throttle control. The latest proven hardware and software techniques, such as microelectromechanical (MEM), multi-layered integrated circuits, and windows and object-oriented programming techniques, will be utilized to reduce the physical size, weight and manufacturing cost and enhance the reliability. The emphasis of the Phase I project will be on the conceptual design, feasibility study and performance demonstration of the proposed approaches and techniques.

SYSTEMS & PROCESSES ENGINEERING CORP.
401 Camp Craft Rd.
Austin, TX 78746
Phone:
PI:
Topic#:
(512) 306-1100
Dr. Michael G. Durrett
NAVY 97-143
Title:Multi-Access portal Cargo Tracking System
Abstract: Systems & Processes Engineering Corporation (SPEC) proposes to develop an automated package tracking system which incorporates PDA/portal based RFID tags with a software reconfigurable portal readers, SPEC's Falcon Gateway SATCOM link, and SPEC Communications Router hosted at the Navy's designated logistics operations center. As packages traverse the portal reader or move pass a handheld PDA, the pallet or package contents are automatically read. Upon completion of the loading/unloading operation, the cargo manifest is transmitted as a digital e-mail message via an inexpensive Inmarsat SATCOM link to a designated Navy operations center. At the operations center a communications router sorts the manifest messages and routes the messages to multiple end location databases according to the specifics of the message routing template.

FOSTER-MILLER, INC.
350 Second Ave.
Waltham, MA 02154
Phone:
PI:
Topic#:
(617) 684-4171
Dr. Patricia Wilson
NAVY 97-146
Title:Environmentally Friendly Disposable Utensils from Clay Nanocomposites
Abstract:Foster-Miller, Inc. (FMI) proposes to use novel nanocomposite technology to enhance the thermomechanical properties of degradable polymers. These property improvements will enable the use of degradable polymers for applications requiring resistance to temperatures exceeding 100_C, such as plastic cutlery for hot food service. The primary objective of this research is to provide the U.S. Navy with ocean degradable food service items to replace currently used plastic cutlery and other disposable galley items. In this Phase I program, Foster-Miller will demonstrate the feasibility of producing nanocomposite materials with degradable resin systems. FMI will measure the thermomechanical properties and degradability of the resulting nanocomposites. The Phase I optional task is a demonstration of the use of a degradable nanocomposite material in an injection molded cutlery application. This work will be performed with the aid of Signature Works, Inc. (a member of the National Industries for the Blind).

KEY CONSULTING ASSOC.
1008 NE 94th Ct
Kansas City, MO 64155
Phone:
PI:
Topic#:
(816) 468-5695
Joseph C. Roetheli
NAVY 97-146
Title:Environmentally-Safe Gluten Polymer Based Degradable Food Service Utensils
Abstract: The proposed research addresses a very pragmatic issue faced by the U.S. Navy--development of environmentally-friendly, safe, disposable food service utensils to meet terms of the MARPOL Treaty and to support efforts to automate galleys aboard ships. Competitive cost has been a major hurdle for all biodegradable food service utensils publicized to date; in addition, the slow rate of degradation has been an issue with many such products. The wheat gluten based resin and processing technology proposed herein holds promising potential to overcome these hurdles. For the past year, Key Consulting Associates has been developing and now is in the process of commercially launching an injection molded product using Midwest Grain Products' wheat gluten resin and its processing technology. Injection molding of product for the pet industry with current formulations demonstrates the desirable mechanical properties of the gluten resin--somewhere between polypropylene and polystyrene but degradable. The finished products proposed herein are projected to be very cost competitive with strong commercial viability. Food service items manufactured using the wheat gluten resin are expected to be not only biodegradable and environmentally safe, in fact they can also be edible. When the utensils degrade, they produce carbon dioxide and water. Objectives for Phase I; 1. Formulate resins and mold prototype products, 2. Build improved mold and refine molding proceudres to improve product performance, and 3. Evaluate mechanical properties and degradability.

PSYCHOMETRIC SOLUTIONS
4661 Harvey Road
San Diego, CA 92116
Phone:
PI:
Topic#:
(310) 396-3031
Edward F. Alf, Jr.
NAVY 97-147
Title:A Tool to Optimize the Predictive Accuracy of Personnel Selection and Classification Instruments
Abstract:The primary goal of this proposal is to design a method for providing unbiased estimates of test validities, intercorrelations, and means for Navy applicants when the test validation samples contain only selected individuals. In practice, personnel selection test and criterion performance scores, obtained only from Navy selectees, rather than the entire population of applicants are used to estimate the validity of the Armed Services Vocational Aptitude Battery (ASVAB) tests and composites. Since the individuals in these samples have been preselected in a variety of ways and are restricted in their range of ability, their predictive validities do not accurately estimate applicant validities. Accurate estimates of applicant test validities are required, since these tests are actually designed to make selection and classification decisions for applicants. Although there are known and scientifically acceptable procedures for estimating applicant validities, involving correcting validities observed on the selected samples, they do not take into account the effect of sequential selection systems that can result in samples which fail to meet the required statistical assumptions of the available correction procedures.During the Phase I effort, we will investigate the feasibility of designing a methodology to estimate, for Navy applicants, or any population, an unbiased predictor and criterion intercorrelation matrix. In short, our major goal is to provide unbiased and accurate estimates of school validities in the applicant population, with its biases and distortions, rather than in a general population of non-applicants, such as the ASVAB norming group, the American Youth Population (U.S. Department of Defense, 1983).

PSYCHOLOGICAL SYSTEMS & RESEARCH
1975 Willow Ridge Circle
Kent, OH 44240
Phone:
PI:
Topic#:
(330) 678-8958
David DuBois
NAVY 97-148
Title:Diagnostic Cognitive Task Analysis and Test Design
Abstract: The overall goal of this project is to enable team trainers to develop effective assessments of team training and performance. To achieve this goal, we plan to complete the following three objectives during Phase I. These are: (1) conduct cognitive task analyses focused on team knowledge acquired in formal instructional settings; (2) develop a diagnostic test team performance; and (3) refine the ADEPT software tool for cognitive test design.

COGNITIVE TECHNOLOGIES, INC.
4200 Lorcom Lane
Arlington, VA 22207
Phone:
PI:
Topic#:
(703) 524-4331
Jared T. Freeman
NAVY 97-149
Title:A Hybrid Analysis of Task and Team Performance in the CIC
Abstract:CTI and its subcontractors, BDM's Defense Enterprise Integration Team and Sonalysts, Inc., propose to apply a hybrid task analysis methodology to model critical functions in the CIC and derive measures of performance by individuals and teams. The approach is a hybrid in that it joins cognitive analysis techniques with methods typically used to in business re-engineering studies. In addition, it integrates analyses of individual and team performance. From the analysis results, we will develop a model of individual and team performance, derive measures of performance and identify tasks in which those measures might be taken. The model and measures will be designed to be implemented in a multi-media performance assessment system which will be conceptualized in a Phase I option and implemented in Phase II.

KAPOS ASSOC., INC.
1101 Wilson Blvd.
Arlington, VA 22209
Phone:
PI:
Topic#:
(619) 524-1564
Michael E. McDevitt
NAVY 97-149
Title:Cognitive and Process-based Diagnostic Tool for Anti-Submarine Warfare (ASW) Team Training
Abstract: This proposal applies experience gained developing Measures of Proficiency for Anti-Submarine Warfare (ASW) and cognitive task analysis (CTA) techniques to develop multi-media diagnostic tools for team training. Phase I will result in full cognitive and team process analyses of teams performing mission tasks in Anti-Submarine Warfare in a simulator. A key facet of these analyses will be development of an expert rules list and comparison of novice and expert behaviors in both knowledge representation and communications. Diagnostic tests fro declarative knowledge and in-situ diagnostic survey instruments will be produced to determine the rule-based procedures used by teams conducting ASW. Performance measures and methodology developed for resource analysis of proficiency, adopted from the FY96/97 ASW Measures of Proficiency study funded by CINCPACFLT, will be used to benchmark team performance using the 14A12 ASW Team Trainer at Fleet ASW Training Center, San Diego, CA. Eight to ten shipboard ASW teams will be used as test subjects for the research as they participate in the Single Ship ASW Course (CIN K-2E-4634), a two-week course of instruction comprised of classroom and simulator training. Phase II will develop and test prototype multi-media technology application based upon diagnostic clues provided by the phase I analyses. Validation of diagnostic procedures will be conducted in Phase II using ASW Measures of Proficiency for comparative analysis of diagnostic effectiveness.

SUMMIT RESEARCH CORP.
1 West Deer Park Drive
Gaithersburg, MD 20877
Phone:
PI:
Topic#:
(757) 460-6205
Robert S. Myre
NAVY 97-150
Title:Target Imagery Classification System
Abstract: Summit Research Corporation's (SRC) technical objectives are to research and develop a robust, innovative Target Imagery Classification System that utilizes ISAR Imagery reports via OTH Gold Message, I&Q radar data and ISAR processed, video imagery received at a fusion center via video link. SRC will design OTH Gold Message ISAR "trial lines" to report operator-measured key image attributes and characteristics. SRC and the LM scientists will also utilize current SRC/LM String Edit, Autofocus and FCDS Probabilities/Fuzzy Logic Algorithms to process, evaluate and classify the three types of imagery, combined with an ISAR, Acoutic, EW, E/B Field Multi-Sensor Correlation, Classification and Data Fusion Process. A robust ISAR Imagery Attributes and Characteristics DBase will be developed to support this project, based on current SRC work on the USN THAW/DADS and PACS-FCDS R&D Projects.

EM&I, INC.
1600 Autumnwood Drive
Reston, VA 20194
Phone:
PI:
Topic#:
(703) 739-1945
Dennis Broderick
NAVY 97-151
Title:Interactive Audio Human System Interface
Abstract: Engineering, Management & Integration, Inc. (EM&I), as the prime contractor, and Global Associates, Ltd. (Global), as a subcontractor, propose to assess the feasibility of implementing an Interactive Audio (IA) Human-System Interface (HSI) to obtain data from information systems. As proposed, the IA HSI will provide warfighters with a means of timely access to data, while allowing them to simultaneously perform other mission essential activities. It could be especially useful to shorten response times in rapid response situations, allowing personnel to obtain information using voice and hearing, leaving eyes and hands free to perform other activities. Our proposal focuses on the exploitation of human multi-sensory capabilities to increase productivity and information transfer. It builds on the results of the proprietary Audio Publications Services (APS) initiative performed by the EM&I/Global Team. The APS initiative defines a concept for providing commuters interactive audio services, including a prototype for an audio newspaper. This concept will be expanded to encompass the broad range of IA HSI applications. Phase I objectives include developing design concepts for IA HSI implementation and a prototype that demonstrates the projected user environment. The EM&I/Global Team proposes six tasks to accomplish the Phase I objectives plus an optional seventh task to support transition to Phase II. Collectively, these tasks provide the requirements generation, technical analysis, design synthesis, and prototyping needed to achieve the Phase I objectives and establish the foundation for IA HSI implementation. The EM&I/Global Team is committed to this effort and proposes highly qualified personnel to ensure its successful completion.

HYPRES, INC.
175 Clearbrook Rd.
Elmsford, NY 10523
Phone:
PI:
Topic#:
(914) 592-1190
Dr. Michael S. Pambianchi
NAVY 97-152
Title:Superconducting tunable multipole bandpass filter with in-situ trim
Abstract: In this Phase I SBIR project, HYPRES proposes to demonstrate a tunable lumped-element superconducting bandpass filter for transmit/receive isolation applications, using Josephson circuits for in situ trim and control. Such a filter will provide insertion loss below 1 dB and 60 dB out-of-band rejection in a filter which can be tuned over the range 500 MHz - 2 GHz. The project will take advantage of the ability to fabricate precision capacitive and inductive filter elements with very small physical dimensions using the HYPRES NB process, reducing costs and imposing only modest cooling requirements while increasing fabrication yield over filters designed for high-temperature superconducting (HTS) materials. After feasibility is shown, the project will culminate with the design of a digitally controlled bandpass filter which is fully tunable over the range 2 MHz - 2 GHz by a control circuit interfaced to a room-temperature interface control bus. In Phase II, HYPRES proposes to build and test a prototype of that filter circuit with control interface bus.

TECSEC, INC.
1953 Gallows Rd., Suite 220
Vienna, VA 22182
Phone:
PI:
Topic#:
(703) 506-9069
Francis J. Adamouski, Jr.
NAVY 97-153
Title:Use of CKM, SuperCard and RFRS to achieve "Security for Reprogrammable Electronic Devices"
Abstract: STS/TECSEC has several technologies that provide a high degree of assurance that Multi-level security for Reprogrammable Electronic Devices is an achievable goal. The cornerstone of these technologies is a cryptographic key management system called Constructive Key Management (CKM). CKM is product which provides a unique method of generating cryptographic key and managing multiple algorithms. It has been accepted as a standard for Finance and Banking transactions by the American National Standards Institute (ANSI), has been implemented in an audio and imagery processing system under government contract and is available commercially in a file encryption, mail encryption and web site encryption product. Used with the second technology, a "Super" Smart Card having a 16-bit processor, 256 Kbytes of SRAM and 8 to 32 Mbytes of Flash Memory, a system of "split technology" can be achieved, protected by cryptography, allowing an individual to control only the authorized parameters of a reprogrammable device while at the same time providing multi-level security to the data flow. In addition, a third technology, Radio Frequency Resonant Signature will be used to authenticate and identify the SuperCards. This technology has been selected for use with US passports and Social Security card beginning in 1998 and is under consideration by the FAA for use on baggage tags in US airports. A fourth technology, presently being investigated for use on the SuperCard, would enable remote updates of the card, anywhere in the world. The "bringing together" of all these technologies plus the use of either a passphrase or biometrics to enhance authentication would provide a cryptographic process to configure the "Device" and also provide multi-level cryptographic security to the "data flow" created by the device.

VIASAT, INC.
2290 Cosmos Court
Carlsbad, CA 92009
Phone:
PI:
Topic#:
(619) 438-7210
Mark Johnson
NAVY 97-154
Title:MIDS/JTIDS Transmission of Critical Aircraft Flight/Emergency Data
Abstract: Communications and data processing have progressed to the point where it is now feasible to widely employ MIDS/JTIDS technology on commercial aircraft. By tapping the flight data information sent to the Flight Data Recorder (FDR), information can be transmitted in real-time to air traffic monitoring sites. In the event of a mishap or accident, rescue agencies would be able to quickly determine the precise location of the incident as well as make initial determinations as to the cause of the incident. The system ViaSat is proposing provides the required MIDS/JTIDS based Flight Data Transmission and is referred to as M-FDT (MIDS Flight Data Transmission). No other company large or small has demonstrated enhanced thruput modes without any modification which would effect the IPF/EMC features circuitry. The enhanced thruput Link-16 modes developed at ViaSat allow the M-FDR to provide a Cockpit Voice Recorder (CVR) function and provide Quick Access Recorder (QAR) functionality allowing parameters to be sampled at increased data rates to aid in hazard identification and prevention.

ECO ENERGY CONVERSION
(d/b/a Tracer Technologies, In
Somerville, MA 02145
Phone:
PI:
Topic#:
(617) 776-6610
Fraser Walsh
NAVY 97-155
Title:An Improved High-Energy-Density Battery
Abstract:The objective of the Phase I program is to demonstrate the feasibility of developing a cell in annular design which meets the Navy's mission needs. This cell is to utilize Li/CFx chemistry to take advantage of the high energy density and improved safety of this chemistry. In the Phase I program, ECO will develop an improved cathode material and then demonstrate the performance of this cathode material in both cylindrical and annular cell designs.

PLANNING SYSTEMS, INC.
7923 Jones Branch Dr.
McLean, VA 22102
Phone:
PI:
Topic#:
(601) 863-0007
John Walrod
NAVY 97-156
Title:Application of Standard Network Technologies to Surveillance Arrays
Abstract: Planning Systems Incorporated (PSI) presents an innovative approach to the development and design of a Surveillance Array ATM Network which provides the benefits of open-architecture ATM technology while solving issues such as coherent sample rate clock distribution across sensor nodes. PSI's proposed approach leverages recent advancements in technical areas such as Navy towed array ATM telemetry, Navy measurement range ATM telemetry, and commercial Voice and Telephony over ATM (VTOA).

DCS CORP.
1330 Braddock Place
Alexandria, VA 22314
Phone:
PI:
Topic#:
(703) 683-8430
Willian Pritchett
NAVY 97-157
Title:A Code Analysis Tool for High-Integrity Systems
Abstract: Research is currently underway to produce guidelines for the development of mission and safety critical systems implemented in Ada 95. This research will analyze whether certain features of Ada 95 should be included or excluded from a critical application. To be of practical value such an analysis will require specific tool support. The Ada Semantic Interface Specification (ASIS) defines a vendor independent API for accessing both the syntactic and semantic information stored within an Ada compiler's library. In this Phase I proposal, we propose to design a tool utilizing ASIS, which is compiler and platform independent and which will allow code to be analyzed based on the evolving standard guidelines for critical systems. The design will employ a layered approach separating the GUI, the ASIS query engine and the report generator. This combined with the use of Ada/Java technology will allow the tool to operate on multiple platforms with little or no modification. The design will be object-oriented with emphasis and utilizing and developing reusable components wherever possible. The design will be expressed in the Unified Modeling Language (UML).

ORINCON HAWAII, INC.
970 North Kalaheo Ave., Suite C-215
Kailua, HI 96734
Phone:
PI:
Topic#:
(808) 254-1532
Mr. Richard D. Trueblood
NAVY 97-158
Title:Detection Using a Generalized Hough Transform Track-Before-Detect Processing
Abstract: Under this SBIR program, ORINCON proposes to demonstrate algorithms to perform detection, localization, and tracking of targets in shallow-water scenarios where the primary measurements available are bearing (time difference of arrival at two phase centers) versus time. The approach used is Track-Before-Detect processing. The term Track-Before-Detect refers to the joint estimation-detection process involved when several time epochs of the basic measurements are combined in such a way as to include the temporal processing gain available from integrating over the total time span associated with the measurements. This utilization of the past data samples however does not need to imply an equivalent time-late as the processing will be done recursively and the information from the past is stored in the state parameters associated with the hypothesized tracks of the targets. A similar more restrictive process is currently being used at ORINCON in connection with the Full Spectrum Program. The restrictive feature alluded to is that the presently implemented «Hough Transform« assumes the time difference versus time track is sufficiently short enough to be approximated by a straight line. The utilization of the «Generalized Hough Transform« as proposed by NRL will remove this restriction.

IRI COMPUTER COMMUNICATIONS CORP.
19562 Ventura Blvd
Tarzana, CA 91356
Phone:
PI:
Topic#:
(818) 996-9805
Dr. Izhak Rubin
NAVY 97-159
Title:Generic multiple Access Module Prototype for the PRIDE System
Abstract: Wireless networks heavily rely on the effective use of multiple access radio links to support multimedia communications. Programmable intelligent digital electronics structures, such as the PRIDE system, are being developed to provide dynamic adaptation of the radio system physical layer functions to changes in link communications behavior. Yet, to effectively allocate the medium access control and network layer resources of wireless links, a generic multiple access module and tool must be developed and integrated. The purpose of this proposed work is to use IRI's innovative hybrid analytical and simulation techniques, integrated with the structure of the currently existing IRI «Planyst« tool, to develop in Phase I models and methods that can then be used in Phase II for the development of a software based generic multiple access prototype module and tool. This module can interact with the employed intelligent electronics system, and with the network management controllers. The proposed module incorporates the traffic and quality-of-service (QoS) requirements of realtime and non-realtime applications, the inputs provided from radio links and the PRIDE system, and other network signals, to best select and tune-up the multiple-access system operation in sharing the available radio link and network resources. It will serve as a tool for planning, analysis, management, control, and resource allocation of hybrid wireless and wired network systems, under application based QoS guarantees. Applications include Navy and Marine Corps JMCOMS ADNS, GCCS, JDISS, Link-11, TADIL, Battle Group RF LOS and SATCOM, Tactical Force Battle Management, NGFS, SAR, AAW, and ASuW network systems.

DIGITAL SYSTEM RESOURCES, INC.
12450 Fair Lakes Circle, Suite 500
Fairfax, VA 22033
Phone:
PI:
Topic#:
(703) 263-2800
Mr. Kermit Harvel
NAVY 97-160
Title:Broadband Signature Information Identification and Extraction
Abstract: Operators have some difficulty classifying contacts on current system displays. Existing display techniques could incorporate broadband spectra to assist operators in the discrimination of contacts. A unique approach is proposed that uses color encoded broadband spectral signature information to discriminate contacts. This simple addition of encoding contact broadband information with color allows the smooth integration of new classification capabilities into current BTH displays in operation. In this Phase I SBIR study I, several encoding techniques will be investigated to determine which provides the best target discrimination improvement. Verifying the performance of automatic systems in dense contact environments, manually operating sonar systems, and discriminating between submarine and surface traffic should become less taxing with ITA's proposed enhancement of existing displays.

METROLASER, INC.
18006 Skypark Circle #108
Irvine, CA 92614
Phone:
PI:
Topic#:
(505) 853-3857
William E. Finley
NAVY 97-161
Title:Shipboard Auto-Tracking with a Unique Gimbal System
Abstract: We propose to develop a unique gimbal system for shipboard auto-tracking based on technology developed by the proposing team for an airborne system. The airborne system features jitter control to less than 10 microradians while performing line of sight stabilized tracking from aircraft. Two MetroLaser gimbals now in service are delivering 3-5 microradian performance. The high bandwidth control system completely compensates for roll, pitch, and yaw of the moving vehicle. Much of the technology is directly applicable to the shipboard problem. The control system will always maintain lock-on of operator designated targets using edge, correlation, or centroid tracking after handover from the ship's radar. Sea State 3 is within the gimbals' performance envelope. The combination of MetroLaser's rigid structures and the Hughes patented quasi-strapdown equation solution results in a gimbal of exceptional stability and performance. Either a mirror or a sensor package mounted directly on the gimbal can be adapted to meet the Navy requirement. We will assess critical issues such as materials, field-of-regard, protective coatings and candidate mounting locations. Phase I culminates in a recommended configuration and design analysis for a prototype gimbal.

DIGITAL SYSTEM RESOURCES, INC.
12450 Fair Lakes Circle, Suite 500
Fairfax, VA 22033
Phone:
PI:
Topic#:
(703) 263-2800
Dr. Michael Wazenski
NAVY 97-162
Title:Physics Based Signal Processing for Next Generation Naval Systems
Abstract: Current signal processing techniques for passive sonar are limited by their simple plane wave mechanics assumptions. Next generation systems, if they are to offer significant performance improvements, must account for the complex propagation conditions that exist in the ocean. To this end DSR proposes an adaptive technique to perform localization of contacts using the highly complex acoustic propagation inherent in littoral waters. DSR will focus on the Advance Deployable System (ADS), leveraging any and all resources to provide maximum cost-effectiveness. The Phase I effort will derive and analyze the proposed adaptive technique, test algorithms through comprehensive simulation, and document results. In addition, DSR will develop appropriate system and operator interfaces and make recommendations for continued research.

TEXAS RESEARCH INSTITUTE AUSTIN, INC.
9063 Bee Caves Road
Austin, TX 78733
Phone:
PI:
Topic#:
(512) 263-2101
Dr. Alan Bray/Mr. John Bu
NAVY 97-163
Title:Abrasion Resistant Low Friction Elastomeric Boot Materials for High Power Active Projectors
Abstract: High power transducer boots must undergo one of the most stringent stress profiles of any underwater encapsulation. Added to the hydrostatic and vibratory fatigue stresses are the problems that come with moving frictional contact - abrasion and heating. Abrasion resistant materials are typically not heat resistant, and fatigue resistant materials are not good at sustaining heat, abrasion, and wear processes. The solution proposed is a multi-layer material built on a fatigue resistant base boot, with a heat or abrasion resistant liner impregnated with friction reducing additives. By using a dual or tri-material approach the benefits of the most resistant materials to a given stress type are combined into a single transducer boot. The challenge is to combine these in a way that maintains boot reliability - this means chemically bonding the laminates to insure an integral boot. Bonds between materials so diverse are difficult to achieve in a transducer environment, and strategies are outlined which should prove bonding feasibility in Phase I. Phase I will culminate with the installation of three prototype boots on scale slotted cylinder transducers. Phase I Option I takes the booted transducers to Lake Seneca, NY for a fully submerged endurance test to demonstrate boot life enhancement over current designs.

MISSION DATA CORP.
12910 Factory Lane
Louisville, KY 40245
Phone:
PI:
Topic#:
(502) 243-2423
Alvin J. Alexander
NAVY 97-164
Title:Visual Transformation Software Tool
Abstract: Mission Data Corporation proposes to develop a software tool and transformation process that analyzes existing C and Ada83 procedural source code, identifies the software objects and operations contained within that code, and re-packages those objects into C++ and Ada95 object-oriented programming languages, with the simultaneous repackaging of the new code for distribtuion amongst various computing platforms. The software tool will use a novel reengineering/redistribution process, combined with existing code parser technology, and a computer platform abstraction layer (CPAL) to achieve reengineering of the distributed source code. The main goal of the proposed Phase I effort will be to demonstrate the viability of this approach by creating a prototype tool, and testing this tool against the existing Navy IUSS Ada83 and C source code. During the project, creation of a Requirements Specification, followed by Object-Oriented Analysis, Design, and Development of the Phase I prototype will be achieved to support this goal.