PPS RAIM Algorithms and Their Performance

Karl Kovach, Diane Davis, and Hana Maquet

Abstract:	This paper describes several Receiver Autonomous Integrity Monitoring (RAIM) -type algorithms that are candidates for use in military Precise Positioning Service (PPS) GPS receivers. Although these PPS RAIM-type algorithms are based on the Standard Positioning Service (SPS) RAIM and RAIM-type algorithms described in RTCA/DO-208, TSO-C129, and elsewhere, a number of interesting modifications are necessary to adapt these SPS algorithms for use in a PPS receiver. Among those modifications are having to deal with the lack of selective availability (SA) error effects and operating in a “fewer-than-all-in-view” mode. The performance of these PPS RAIM-type algorithms is presented, both with respect to TSOC129 requirements and with respect to their global detection availability for en route, terminal, and non-precision approach operation. Their performance is compared against the evolving required navigation performance (RNP) standards for sole means navigation and a preliminary evaluation is offered.
Published in:	Proceedings of the 7th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1994) September 20 - 23, 1994 Salt Palace Convention Center Salt Lake City, UT
Pages:	597 - 607
Cite this article:	Updated citation: Published in NAVIGATION: Journal of the Institute of Navigation
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In