Combat Cueing: Geolocation System for Low Probability of Intercept Signals
Final rept. Jun 1996-Nov 1999
RAYTHEON E-SYSTEMS FALLS CHURCH VA
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Raytheon Company has successfully developed and demonstrated a revolutionary new signals exploitation system that weighs 10 times less than conventional technology. Developed under DARPAs Smart Module program, Combat Cueing is a human-portable system that provides radio frequency RF situational awareness to small military units, allowing the warfighter to detect and locate in real time low-probability-of-intercept LPI transmitters operating between 30 and 88 MHz. Raytheon conducted field demonstrations of Combat Cueing at Ft. A.P Hill, VA. System modules, mounted on HMMWV military vehicles, successfully detected and located threat radios with 250 meter accuracy. The system employed a novel baud-phase time-difference-of-arrival TDOA algorithm, which calculated emitter locations by measuring demodulated signal symbol baud arrival times at each of the modules. By simultaneously reducing the space, weight, power and cost of conventional systems, these all-weather modules are operational across a broad spectrum of platforms, including tactical ground vehicles, robots, unmanned aerial vehicles, helicopter and ships, or may be left unattended on buildings, towers or the battlefield.
- Radio Countermeasures
- Target Direction, Range and Position Finding