A Practical Algorithm for Autonomous Integrity Verification Using the Pseudo Range Residual

Bradford W. Parkinson, Penina Axelrad

Abstract:	This paper is a follow on to two earlier presentations made by the writers at the ION 1987 National Technical Meeting and the ION Satellite Division 1987 Technical Meeting. [1,2] The first suggested an approach to autonomous satellite integrity verification based on the range residuals to multiple GPS satellites. Empirical results from Monte Carlo computer simulations were used to develop an algorithm for satellite failure detection and isolation, and to evaluate its performance. In the second paper we addressed two key topics, an experimental determination of the measurement error structure and a probabilistic analysis of the distribution of the range residual test statistic. The information available in these papers will not be duplicated here. This paper describes a practical method for using the range residual parameter as a test statistic for satellite failure detection and isolation (D/I). Empirical results from computer simulations indicate performance in terms of false alarm and missed detection's. The range of positioning errors associated with both successful D/I and missed detection's is also given.
Published in:	Proceedings of the 1988 National Technical Meeting of The Institute of Navigation January 26 - 29, 1988 Santa Barbara, CA
Pages:	254 - 260
Cite this article:	Parkinson, Bradford W., Axelrad, Penina, "A Practical Algorithm for Autonomous Integrity Verification Using the Pseudo Range Residual," Proceedings of the 1988 National Technical Meeting of The Institute of Navigation, Santa Barbara, CA, January 1988, pp. 254-260.
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