SITIS Archives - Topic Details
Program:  SBIR
Topic Num:  A10-089 (Army)
Title:  Tactical Counter Concealment Aerial Sensors Electronic Protection (TC-CAS EP)
Research & Technical Areas:  Sensors, Electronics

Acquisition Program:  
 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:  Develop techniques for low and/or high -frequency radar systems (e.g. VHF, UHF, L, and/or KU bands) that could be incorporated into a current or future SAR system to mitigate the effects of unintentional radio frequency interference (RFI) or intentional electronic attack (EA).
  Description:  Counter Concealment Aerial Sensors (C-CAS) that are currently being developed by the Army such as TRACER, ARTEMIS and FORESTER, and other future enhanced systems, operate at VHF, UHF and or L-band frequencies. These radars must operate in environments in which there can be a significant amount of unintentional RFI and possibly intentional EA. The RFI and EA, which are received through the systems receive antenna’s mainlobe, sidelobes, and/or backlobes, could significantly degrade the image quality and or adversely affect system capability. This effort will develop one or more EP techniques to mitigate the effects of RFI and/or EA.

  PHASE I: The feasibility study shall investigate one or more innovative EP concepts and will show through analysis and/or a basic simulation how the proposed technique(s) would improve target detectability in a C-CAS SAR system and add system capability protection in the presence of strong RFI and/or EA emissions.
  PHASE II: The contractor shall develop a prototype consisting of detailed software simulation to demonstrate how well the proposed EP techniques(s) would perform in a complex EA and RFI environment. Also, the contractor will apply the techniques developed under Phase I to available test data provided by the Army system or conduct a data collection to obtain such data.

  PHASE III: The contractor shall work with PM RUS, I2WD-RA and/or the radar manufacturer to integrate the solution into a Counter Concealment Aerial Sensors (C-CAS) radar system for military applications or similar Department of Homeland Security application to decrease vulnerability to RFI and/or Electronic Attack of radar systems.

  References:  ichard Dubroff, S.V. Marshall, & G.G. Skitek. "Electromagnetic Concepts and Applications". New Jersey: Prentice-Hall, Inc; 1996. Print. Merrill Skolnik. "Introduction To Radar Systems". New York: McGraw Hill; 1980. Print L.A. Bessette and S. Ayasli, “Ultra-Wideband P-3 and CARABAS II Foliage Attenuation and Backscatter Analysis,” IEEE 2001 Radar Conf., Atlanta, GA, May, 2001.

Keywords:  Counter Concealment Aerial Sensors, Penetrating radar, Optimal waveform

Questions and Answers:
Q: In Phase I task description it says "The Contractor will select a representative sensor to focus analysis efforts and investigate one or more innovative software Electronic Protect (EP) concepts." Is the contractor completely free to define this sensor and/or radar waveform, or is it constrained to be one of the current typical radars that have been deployed?
A: The contractor may propose to use any representative sensor.
Q: Q1. What are the system bandwidths for VHF, UHF, and L-band frequencies?
Q2. The scope of the topic can also include a new radar waveform design?
Q3. In the description, it was stated as “… The Raw data necessary for this already exists in the radar's signal processor.” -- Could you clarify what it meant by “Raw data”? Is it received radar waveform?
A: 1.) VHF: 30-300 MHz, UHF: 300 - 1000 MHz, L-Band: 1-2 GHz
2.) Yes.
3.) Raw data refers to the received Radar Phase History (RPH) data.

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