Small Affordable Anti-Jam GPS Antenna (SAAGA) Development

Ken Falcone, George Dlmos, Chun Yang, Fayez Nima, Stan Wolf, David Yam, John Weinfeldt, Paul Olson

Abstract:	The U.S. Army CECOM is developing a low-cost GPS anti-jam Solutiow refined to as the Small Afllordable Anti-Jam GPS Antenna (SAAGA), for ground vehicle and helicopter applications. The SAAGA product will provide 30 dB of additional anti-jam protection for a large mix of wideband and narrowband interfiiers. The SAAGA program goals are to mitigate up to 10 interferers (up to 3 wideband and up to 7 narrowband) at an ailordable cost of $4,000 per unit in production quantity. The cost/performance goal of SAAGA will be achieved by employing a novel all-digital antenna spatial-temporal processing technology and a proven low-cost antenna rnanufiicturing technology. A simpler and lower cost version of SAGA to mitigate narrowband interferer threats, will utilize a conventional Fixed Radiation Pattern Antenna (FRPA) and can be produced at a cost of $1,000 in production quantity. Both versions of the SAAGA product will be field tested and evaluated by the Army on a UH-60A helicopter platform, This paper describes the novel features of the SAAGA antenna array design and anti-jam processing, presents laboratory test results, analysis and simulation performance da@ and presents the Army field test and evaluation plan. The significance of the SfL4GA research and development program is to ovemome the cost barrier of adaptive antennas for interference mitigation to make GPS anti-jam technology affordable to both military and commercial GPS users.
Published in:	Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999) September 14 - 17, 1999 Nashville, TN
Pages:	1149 - 1156
Cite this article:	Falcone, Ken, Dlmos, George, Yang, Chun, Nima, Fayez, Wolf, Stan, Yam, David, Weinfeldt, John, Olson, Paul, "Small Affordable Anti-Jam GPS Antenna (SAAGA) Development," Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999), Nashville, TN, September 1999, pp. 1149-1156.
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