The Air Force has equipped its aircraft with avionic systems such as Global Positioning System (GPS) and Inertial Guidance Systems (INS) capable of providing accurate navigation solutions. The aircrews flying these aircraft require a system that can either survive the hostile environments encountered in combat or notify the aircrew that their performance has been significantly degraded. This research focuses on failure detection and isolation techniques using an extended Kalman filter and generalized likelihood ratios using matched filters. Analysis is conducted using a Kalman filter development package known as the Multimode Simulation for Optimal Filter Evaluation (MSOFE). Both a large order truth model for the navigation system (in which a full 24 satellite constellations is modeled) and a reduced-order Kalman filter are developed. Results suggest that failures within the GPS can be detected, isolated, and in some cases compensated through feedback.... Spoofing, Failure detection, Kalman filter, Jamming.


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    Title :

    Detection of Spoofing, Jamming, or Failure of a Global Positioning System(GPS)


    Contributors:

    Publication date :

    1992


    Size :

    194 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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