SITIS Archives - Topic Details
Program:  SBIR
Topic Num:  A10-085 (Army)
Title:  Scenario Based Modeling of Electronic Systems
Research & Technical Areas:  Information Systems, Electronics

Acquisition Program:  PEO Intelligence, Electronic Warfare and Sensors
 The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), which controls the export and import of defense-related material and services. Offerors must disclose any proposed use of foreign nationals, their country of origin, and what tasks each would accomplish in the statement of work in accordance with section 3.5.b.(7) of the solicitation.
  Objective:  Investigate, define, develop and demonstrate a software agent that will significantly improve the Army's ability to develop effective defeat solutions and allow for adaptation of the tactics and doctrine employed in a timelier manner. The software agent(s) shall decompose electronic system emplacement scenarios into a form suitable for input into mature user friendly COTS Electromagnetic solver algorithms and select the optimal Electromagnetic (EM) solvers for the scenarios of interest.
  Description:  The emplacement characteristics of asymmetric scenarios have created a greater need for a detailed understanding and accurate modeling of operational and tactical scenarios for RF propagation and conductance of RF energy into electronic devices and sensors. Presently, decomposing the relevant physical characteristics into an electrical model is done manually. Manual manipulation of existing models requires an in depth knowledge of each model and is time intensive. Currently there are no provisions for optimization of the EM solver algorithms in a uniform and logical fashion. Additionally run times for various scenarios and sensitivity analysis with different scenarios are run-time intensive. Scenario based modeling is intended to be a tool for material developers to help identify and develop smarter effective techniques against the evolving threat. The tool(s) will minimize system size, weight, cost and burden on the user platforms by better utilizing sensor capabilities.

  PHASE I: Investigate feasibility and trade offs involved with developing software agents that can decompose graphic representations of electronic systems and their surrounding environment and select optimal EM solvers to best satisfy the scenario of interest.
  PHASE II: Develop, build, test, validate and demonstrate the software for intended scenarios on a common computer system. The software will be provided with all user documentation

  PHASE III: Transition software to I2WD and Other Government Agencies. Apply tools to commercial market place EM designers; the cell phone industry and to Military end users PM CREW, DCGS-A. Transition work to IRON Symphony ATO.

  References:  ) System Architecture: The Context for Scenario-based Model Synthesis, Sebastain Uchitel, Robert CHately, Jeff Kramer, Jeff MaGee, Department of Computing, Imperial College, London, 25 June 2004 2) FIT Numerical Modeling for EMI Discovery and Design. J. Drewniak, UMR/MS&T EMC Laboratory Missouri University of Science and Technology, IEEE International Symposium on Electromagnetic Compatibility (EMC), 22 Aug 2008. 3) A Scenario based modeling method for component-based embedded software. Lui Chuanchui, Rong Mei, Zhang Guangquam, Soochow University, 21-23 Nov 2007, IEEE Symposium.

Keywords:  Modeling and Simulation, Software, EM, Electronic Systems

Questions and Answers:
Q: 1. Please describe the RF scenario and environment you wish to model with this tool.

2. What frequency bands and bandwidths are most important?

3. What types of materials need to be modeled (e.g., isotropic, anisotropic, linear, dispersive, homogeneous, and inhomogeneous)?

4. Does atmospheric loss need to be included?

5. Will signal propagation through materials need to be modeled?

6. Will it be necessary to model RF coupling or scattering?

7. What is the complexity level of structures that need to be modeled?

8. What is the range of transmit and receive powers?

Thank you.
A: 1. Please describe the RF scenario and environment you wish to model with this tool.
Answer: The solicitation uses the term emplacement scenario to mean the positioning and orientation of a pair of electronic systems within an outdoor setting. The outdoor setting consists of air, terrain elements such as earth , natural and manmade features such as a road, building/structure and trees that have sufficient RF characteristics to
warrant consideration.

2. What frequency bands and bandwidths are most important?
Answer: As a general purpose RF tool, the frequency range should be as broad as possible. It would be desirable to cover .1mhz to 20 GHz, if feasible, without driving the other considerations such as cost and complexity of the beyond a reasonable point. Needs to be considered during the feasibility and tradeoff study. The bandwidths would be similar to those encountered in radar and communications systems.

3. What types of materials need to be modeled (e.g., isotropic, anisotropic, linear, dispersive, homogeneous, and inhomogeneous)?
Answer: Earth, rocks, roadway materials, Manmade obstructions such building /walls

4. Does atmospheric loss need to be included?
Answer: yes.

5. Will signal propagation through materials need to be modeled?
Answer: yes.

6. Will it be necessary to model RF coupling or scattering?
Answer: RF coupling into electronic system is of interest. Scattering needs to be considered.

7. What is the complexity level of structures that need to be modeled?
Answer. The level of complexity is a consideration for the feasibility
and tradeoff study.

8. What is the range of transmit and receive powers?
Answer: Needs to be as broad as possible and will be a consideration in the feasibility and tradeoff study. Probably similar to those encountered in radar and communications systems.
Q: For which particular numerical modeling techniques is the Army interested in automating the superuser?
A: It will be up to you, during the phase 1 effort, to demonstrate which techniques are appropriate.

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