This work introduces, examines, and compares several quaternion normalization algorithms, which are shown to be an effective stage in the application of the additive extended Kalman filter (EKF) to spacecraft attitude determination, which is based on vector measurements. Two new normalization schemes are introduced. They are compared with one another and with the known brute force normalization scheme, and their efficiency is examined. Simulated satellite data are used to demonstrate the performance of all three schemes. A fourth scheme is suggested for future research. Although the schemes were tested for spacecraft attitude determination, the conclusions are general and hold for attitude determination of any three dimensional body when based on vector measurements, and use an additive EKF for estimation, and the quaternion for specifying the attitude.


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    Title :

    Quaternion Normalization in Additive EKF for Spacecraft Attitude Determination


    Contributors:

    Publication date :

    1991


    Size :

    19 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Quaternion normalization in additive EKF for spacecraft attitude determination

    Bar-Itzhack, I. Y. / Deutschmann, J. / Markley, F. L. | NTRS | 1991


    Quaternion normalization in additive EKF for spacecraft attitude determination

    Bar-Itzhack, I. Y. / Deutschmann, J. / Markley, F. L. | NTRS | 1991


    Quaternion normalization in additive EKF for spacecraft attitude determination

    BAR-ITZHACK, I. / DEUTSCHMANN, J. / MARKLEY, F. | AIAA | 1991


    Quaternion normalization in spacecraft attitude determination

    DEUTSCHMANN, JULIE / BAR-ITZHACK, ITZHACK / GALAL, KEN | AIAA | 1992


    Quaternion normalization in spacecraft attitude determination

    Deutschmann, Julie / Bar-Itzhack, Itzhack / Galal, Ken | NTRS | 1992