GPS receiver fault detection method and system
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United States of America Patent
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Sep 5, 2000
Grant Date -
N/A
app pub date -
Dec 31, 1996
filing date -
Dec 31, 1996
priority date (Note) -
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Abstract
A GPS receiver fault detection method for use in a GPS attitude determination system having Q Receivers, wherein Q>3, includes providing R attitude solutions using subsets of P Receivers and signals from two or more space vehicles, wherein 3.ltoreq.P.ltoreq.Q-1. Post-update measurement residual sets equal to the number R of attitude solutions are determined. Each of the post-update measurement residual sets corresponds to one of the attitude solutions. 'S' Receiver faults are detected by comparing the R post-update measurement residual sets, wherein 1.ltoreq.S.ltoreq.Q-3. A faulty Receiver detection system for carrying out the method is also described.
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