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Reduced emission sensors for Short Range Air Defense (SHORAD)

Description:

TECHNOLOGY AREA(S): Electronics 

OBJECTIVE: The Army has interest in sensors with passive and low probability of intercept acquisition and weapon cueing capabilities applicable to air defense in support of Short Range Air Defense (SHORAD) system missions. Small innovative business insights to support highly survivable short to moderate range Army Air and Missile Defense (AMD) acquisition and fire control sensors initiatives is sought. 

DESCRIPTION: State-of-the-Art or emerging passive or low probability of intercept sensor technologies are needed as complementary components of the SHORAD integrated sensor suite to support SHORAD unit real time Situational Awareness (SA), target acquisition and weapon cueing. The SHORAD missions require rugged, responsive, compact high precision sensors, which are capable of supporting targeting (weapon cueing as a minimum), identification/recognition and data fusion processes, while producing a reduced signature to threat counter Intelligence, Surveillance and Reconnaissance (ISR) assets. On-board passive and low probability of intercept sensors must be compatible with supported unit battlefield environments and vehicle form factors. It is expected that these requirements will drive integration of multi-spectral passive sensor / low probability of detection sensor technologies in rugged, compact form factors. The prioritized targets to be addressed are: 1. Nano- to Class III Unmanned Air System (UAS), to include individual, multiple and swarm presentations. 2. Rotary Wing/Fixed Wing (RW/FW), to include countering aircraft launched Tactical Air to Surface munitions. 3. Rocket, Artillery and Mortar (RAM) to include precision indirect fires and salvo attacks. Sensors are required to perform target acquisition at all mission phases and to support target engagement on the move or on a short halt. Preference is for the sensor to support high volume of fire required to a large number of different target types in a combined saturation attack. Sensors are required to perform target acquisition at all mission phases and to support target engagement on the move or on a short halt. Preference is for the sensor to support high volume of fire required to a large number of different target types in a combined saturation attack. Sensor related elements of the kill chain include: 1. Target acquisition. 2. Fusion with other SHORAD sensors. 3. Positive identification, Identification of Friend or Foe (or classification of non-combatant). 4. Weapon cueing (with possible fire control capability) and kill assessment of kinetic and non-kinetic engagements. 

PHASE I: Investigate and research technologies that can be incorporated into SHORAD systems, and are complementary to existing SHORAD sensors, to build and field sensor systems that are extremely difficult to detect, or attack, and are able to provide actionable information to the Soldier concerning active threats. Some technologies may be commercial-off-the-shelf tools that can be innovatively employed to operationally harden systems (operate with minimal signature in the battlefield ground mobile environment). Some technologies may be new and, as yet, not well known. False targets must be minimized, but sensors must provide actionable data in real time. Sensors could be signature based, behavior based or may leverage a technique that is yet to be developed. Sensors must be compatible with, or tolerate, periodic system software updates/patches, must be “soldier friendly” and supportable throughout the lifetime of the fielded system. Investigations should include estimated development and production costs (to support preliminary government budgeting activities). Once investigation and research of potential technology is complete, the offeror will, in an unclassified format, identify implementation options in a Phase 1 report. 

PHASE II: Using the technology and approach(es) identified in Phase I, and adding classified Phase II technologies if needed, develop, fabricate and validate a prototype sensor. The sensor should fully address integration, size-weight-and-power (SWAP), and any system performance or impacts. A technology Readiness Level (TRL) of 5 or 6 depending on system complexity and SHORAD system availability (TRL 5 - Component and/or breadboard validation in relevant environment / TRL 6 - System/subsystem model or prototype demonstration in a relevant environment) is required to support initial sensor evaluation activities and possible incorporation into the SHORAD equipment set. Given a viable technical approach and performance, estimate and refine development, support and production costs to be included with technical concept data and delivered prototype implementation. 

PHASE III: Transition the Phase II product into a fieldable sensor prototype for detailed technical and operational testing. Following testing, perform cost/ manufacturability/ performance optimization and prepare sufficient data products to support potential procurement and fielding with the Army AMD sensors, weapons, and/or with other potential systems. 

REFERENCES: 

1: DETECTION AND JAMMING LOW PROBABILITY OF INTERCEPT (LPI) RADARS, NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS, Aytug Denk, September 2006, http://dtic.mil/dtic/tr/fulltext/u2/a456960.pdf

2:  Emission Management for Low Probability Intercept Sensors in Network Centric Warfare, Vikram Krishnamurthy, University of British Columbia, IEEE Transactions of Aerospace and Electronic Systems VOL. 41, NO. 1 January 2005, www.ece.ubc.ca/~vikramk/Kri05.pdf

3:  DETECTION AND CLASSIFICATION OF LOW PROBABILITY OF INTERCEPT RADAR SIGNALS USING PARALLEL FILTER ARRAYS AND HIGHER ORDER STATISTICS, NAVAL POSTGRADUATE SCHOOL, Monterey, California THESIS, Fernando L. Taboada, September 2002, http://www.dtic.mil/dtic/tr/fulltext/u2/a407164.pdf

4:  Bi- and Multistatic Radar, Terje Johnsen and Karl Erik Olsen, Norwegian Defence Research Establishment (FFI), Advanced Radar Signal and Data Processing (pp. 4-1 – 4-34). Educational Notes RTO-EN-SET-086, Paper 4. Neuilly-sur-Seine, France: RTO. RTO-EN-SET-086, http://www.dtic.mil/dtic/tr/fulltext/u2/a470685.pdf

KEYWORDS: Passive Sensor, Electro-optical/Infra-red, Bi-static, Multi-static, Low Probability Of Intercept, Weapon Cue 

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