A Proposed Process for the Analysis of GPS Integrity in Navigation, Approach and Landing Applications

Rick Cassell

Abstract:	One of the key performance requirements that must be demonstrated in the application of GPS to aircraft navigation, approach and landing is integrity. Integrity is one of the four parameters proposed as part of the Required Navigation Performance (RNP) that will be required of new technologies used for approach and landing. The other three parameters are accuracy, continuity, and availability. This paper proposes a process by which GPS integrity can be evaluated as it applies to navigation, approach and landing operations. The latest integrity requirements for each phase of flight are defined, as is the process by which current navigation and landing systems are evaluated for integrity. The process proposed for analysis of GPS integrity follows established practices, based on Fault/Failure Analyses. An initial attempt is made to identify potentially hazardous failure modes with GPS, including augmentations, and assess how they affect the integrity of the system.
Published in:	Proceedings of the 50th Annual Meeting of The Institute of Navigation (1994) June 6 - 8, 1994 Antlers Doubletree Hotel Colorado Springs, CO
Pages:	421 - 431
Cite this article:	Cassell, Rick, "A Proposed Process for the Analysis of GPS Integrity in Navigation, Approach and Landing Applications," Proceedings of the 50th Annual Meeting of The Institute of Navigation (1994), Colorado Springs, CO, June 1994, pp. 421-431.
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