A scheme for estimating the angular velocity of a spacecraft without rate gyros is presented. It is based upon a nonlinear estimator whose inputs are measured inertial vectors and their calculated time derivatives relative to vehicle axes. It works for all spacecraft attitudes and requires no knowledge of attitude. It can use measurements from a variety of onboard sensors like Sun sensors, star trackers, or magnetometers, and in concert. It can also use look angle measurements from onboard tracking antennas for tracking and data relay satellites or global positioning system satellites. In this paper, it is applied to a Sun point scheme on the Hubble Space Telescope assuming all or most of its onboard rate gyros have failed. Simulation results are presented for verification.


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    Titel :

    A nonlinear estimator for reconstructing the angular velocity of a spacecraft without rate gyros


    Beteiligte:
    Polites, M. E. (Autor:in) / Lightsey, W. D. (Autor:in)

    Erscheinungsdatum :

    01.12.1991


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



    Spacecraft Attitude Rate Measurement Systems without Gyros

    Serrano, J. B. / Mora, E. J. / Sarti, F. et al. | British Library Online Contents | 1997


    Angular velocity measurement using rate gyros in a spinning vehicle

    Singh, S.N. / Bhattacharya, K.C. / Ramaswamy, S. et al. | Tema Archiv | 1975


    Angular Velocity Measurement Using Rate Gyros in a Spinning Vehicle

    Singh, S.N. / Bhattacharya, K.C. / Ramaswamy, S. et al. | IEEE | 1975


    Attitude Rate Measurement Through Angular Momentum Gyros

    Zhang, H.-H. / International Astronomical Federation | British Library Conference Proceedings | 1998