Baseline Fault Detection and Exclusion Algorithm

Frank van Graas, James L. Farrell

Abstract:	This paper provides a status update of the activities of Working Group 5 (WG-S), Fault Detection and Isolation (FDI), of RTCA, Inc. Special Committee 159 (SC-159). SC-159 is in the process of developing Minimum Operational Performance Standards (MOPS) for airborne navigation equipment using the Global Positioning System (GPS) augmented with other systems/equipment/techniques. WG-5 addresses two areas: 1) Navigation requirements; and 2) Development of a baseline FDI algorithm. A brief summary of the navigation requirements is presented, followed by a detailed overview of the baseline algorithm. Rather than providing for fault isolation and reconfiguration, the algorithm uses the fault exclusion principle. The integrated receiver selects any set of six measurements which satisfies the navigation requirements. If the algorithm detects an alarm, the algorithm simply selects another set of six measurements that satisfies the requirements. Test techniques are presented which w-ill allow for statistical testing of the algorithm such that it can be shown that the integrated receiver meets the navigation requirements with a high level of confidence.
Published in:	Proceedings of the 49th Annual Meeting of The Institute of Navigation (1993) June 21 - 23, 1993 Royal Sonesta Hotel Cambridge, MA
Pages:	413 - 420
Cite this article:	van Graas, Frank, Farrell, James L., "Baseline Fault Detection and Exclusion Algorithm," Proceedings of the 49th Annual Meeting of The Institute of Navigation (1993), Cambridge, MA, June 1993, pp. 413-420.
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