GPS signal fault isolation monitor

Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite

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701213, G01S 502, H04B 7185

Patent

active

059696729

ABSTRACT:
A system to determine, from inertial reference apparatus and from GPS receiver apparatus, acceleration signals along a predetermined axis to determine the failure of a GPS satellite signal by comparison of the acceleration signals and to monitor newly acquired GPS satellite signals to determine if a satellite drift was present prior to acquisition.

REFERENCES:
patent: 5606506 (1997-02-01), Kyrtsos
patent: 5629855 (1997-05-01), Kyrtsos et al.
patent: 5757317 (1998-05-01), Buchler et al.
patent: 5787384 (1998-07-01), Johnson
Article "Implementation of a RAIM Monitor in a GPS Receiver and an Integrated GPS/IRS" published by the Institution of Navigation, Alexandria, VA was discussed in the specification.
Patent Application entitled "Navigation System with Solution Separation Apparatus for Detecting Accuracy Failure" Serial No. 08/721,232 was discussed in the specification.

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