Airborne GPS RFI Localization Algorithms

E. Michael Geyer, Bette M. Wirier, Robert A. Frazier

Abstract:	ARLAS (Aircraft RFI Localization and Avoidance System) is currently being developed by the U.S. Department of Transportation (DOT) Volpe National Transportation System Center (VOlpe Center), un&r sponsorship of the Federal Aviation Administration (FAA), ARLAS is intended to detect and localize sources of radiofkequency interference (RFI) to GPS from an airborne platform, and is one element of a larger FAA-Volpe Center program addressing GPS RFI mitigation. ARLAS has three major subsystems (1) a GPS receiver and roof-mounted patch anteu, (2) gyros with capability to measure roll, pitch and heading and (3) a personal computer containing software which process receiver and gyro data and estimate the location of an interlierer. The first two components are relatively high cost, but can be found on many aircr~, the last is special to the ARLAS system and can be distributed at very low cost. This paper describes the data processing algorithins embedded in the ARLAS software, including examples of their application to aircraft data collected by the FAA.
Published in:	Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997) September 16 - 19, 1997 Kansas City, MO
Pages:	1447 - 1456
Cite this article:	Geyer, E. Michael, Wirier, Bette M., Frazier, Robert A., "Airborne GPS RFI Localization Algorithms," Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997), Kansas City, MO, September 1997, pp. 1447-1456.
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