This paper presents the attitude determination method for the Bifocal Relay Mirror Spacecraft Simulator. The simulator simulates three-axis motion of a spacecraft and has an optical system emulating a bifocal space telescope. The simulator consists of three control moment gyroscopes, rate gyros, two-axis analog sun sensor, and two inclinometers. The five-foot diameter platform is supported on a spherical air bearing to offer a low-torque environment. This paper demonstrates two attitude determination methods employing the measurements from a two-axis analog IR sensor, two inclinometers, and a triaxial gyroscope. The first method implements the conventional Kalman filter algorithm. The second method uses a nonlinear observer derived from the Lyapunov s direct method. Analytical and experimental results are presented to validate the proposed algorithm.


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    Titel :

    Attitude Determination for NPS Three-Axis Spacecraft Simulator


    Beteiligte:
    J Kim (Autor:in) / R Cristi (Autor:in) / N.B Agrawal (Autor:in)

    Erscheinungsdatum :

    2004


    Format / Umfang :

    12 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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