Integrated GPS/lNS/SAR/GMTI Radar Precision Targeting Flight Test Results

R. Guarino and Paul Ibsen

Abstract:	This paper summarizes the results of a series of flight tests flown to evaluate the precision targeting performance improvements obtainable with a modem tactical coherent airborne radar when operating with an integrated Global Positioning System/Inertial Navigation System (GPS/INS). The radar used in these experiments was the AN/APG-76 which has both synthetic aperture radar and ground moving target indication (GMTI) modes. Performance was evaluated with two integrated GPS/INS systems, a Honeywell H-764G and a Litton LN-1 OOG both of which are state- of-the-art systems. Each system is implemented in a tightly coupled GPS/INS configuration with P/Y code GPS receivers. The testbed for these flight tests was a Gulfstream II aircraft that was instrumented to record all radar and GPS/INS data. Testing was done with both fixed and moving targets. The fixed target tests were performed using an array of surveyed comer reflectors; the moving target tests used a van moving along the edge of a runway. In both cases, the test results show that an order of magnitude improvement in targeting performance is obtained with use of GPS.
Published in:	Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1995) September 12 - 15, 1995 Palm Springs, CA
Pages:	373 - 379
Cite this article:	Guarino, R., Ibsen, Paul, "Integrated GPS/lNS/SAR/GMTI Radar Precision Targeting Flight Test Results," Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1995), Palm Springs, CA, September 1995, pp. 373-379.
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