NDLI: Parity space methods for autonomous fault detection and exclusion using GPS carrier phase

Content Provider	IEEE Xplore Digital Library
Author	Pervan, B.S. Lawrence, D.G. Cohen, C.E. Parkinson, B.W.
Copyright Year	1996
Description	Author affiliation: Dept. of Aeronaut. & Astronaut., Stanford Univ., CA, USA (Pervan, B.S.; Lawrence, D.G.; Cohen, C.E.; Parkinson, B.W.)
Abstract	Kinematic carrier phase positioning provides navigation integrity. The sub-centimeter precision of carrier phase measurements can be used to leverage receiver autonomous integrity monitoring (RAIM) in the sense that extremely tight fault detection thresholds can be set on the least-squares residual (ensuring navigation integrity) without incurring high false alarm rates. In addition, the high precision of carrier phase, when compared with code phase, lowers the integrity risk associated with the fault identification process. This is true because carrier phase provides a much cleaner observation of the effect of a given failure on the residual. Thus, for the same improvement in navigation continuity (obtained from fault isolation), misidentification will be less likely. This paper is focused on the use of parity space methods to investigate the limits of high-integrity and high-continuity GPS performance. In this regard, prototype algorithms for receiver autonomous fault detection and exclusion were developed with the goal of maximizing navigation continuity subject to the constraint of maintaining high integrity (by repressing mis-identifications). Fault detection and exclusion performance was demonstrated through analysis and extensive simulation. In addition, the prototype algorithms were implemented in a real-time airborne kinematic positioning architecture and tested by deliberately inducing failures in the post-processing of raw flight data.
Starting Page	649
Ending Page	656
File Size	925069
Page Count	8
File Format	PDF
ISBN	0780330854
DOI	10.1109/PLANS.1996.509141
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-04-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fault detection Navigation Kinematics Prototypes Phase measurement Monitoring Fault diagnosis Global Positioning System Performance analysis Analytical models
Content Type	Text
Resource Type	Article

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