A systematic analysis of the observability of an inertial navigation system (INS) in ground alignment with Bar-Itzhack and Berman's error model is presented. It is shown that the unobservable states are separately contained in two decoupled subspaces. The constraints on the selection of unobservable states are discussed. An estimation algorithm which is derived fully from the horizontal velocity outputs for computing the misalignment angles is provided. It reveals that the azimuth error can be entirely estimated from the estimates of leveling error and leveling error rate, without using gyro output signals explicitly.<>


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    Titel :

    Error estimation of INS ground alignment through observability analysis


    Beteiligte:
    Yeon Fuh Jiang (Autor:in) / Yu Ping Lin (Autor:in)


    Erscheinungsdatum :

    01.01.1992


    Format / Umfang :

    417954 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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