Assessment of GPS Anti-Jam System Pseudorange and Carrier Phase Measurement Error Effects

Gary A. McGraw, Charles McDowell, Ryan S.Y. Young and David W. Glessner

Abstract:	The Joint Precision Approach and Landing System (JPALS) Differential Global Positioning System (DGPS) architectures require high anti-jam (AJ) GPS equipment with Controlled Reception Pattern Antennas (CRPAs) and Digital Beam Forming (DBF) processing. Because of stringent JPALS accuracy and integrity requirements, the effect of CRPA phase and group delay variations on GPS measurements has been identified as an important issue. This paper summarizes detailed simulation studies that assess the effects of CRPA errors on carrier phase and pseudorange measurements in precision DGPS processing. Both unjammed and jammed conditions are evaluated, and the effects of AJ-induced measurement errors are assessed with respect to different JPALS applications.
Published in:	Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005) September 13 - 16, 2005 Long Beach Convention Center Long Beach, CA
Pages:	603 - 617
Cite this article:	McGraw, Gary A., McDowell, Charles, Young, Ryan S.Y., Glessner, David W., "Assessment of GPS Anti-Jam System Pseudorange and Carrier Phase Measurement Error Effects," Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005), Long Beach, CA, September 2005, pp. 603-617.
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