A novel approach is presented in this paper to analyze attitude precision and control for an instrument gimbaled to a spacecraft subject to an internal disturbance caused by a moving component inside the instrument. Nonlinear differential equations of motion for some sample cases are derived and solved analytically to gain insight into the influence of the disturbance on the attitude pointing error. A simple control law is developed to eliminate the instrument pointing error caused by the internal disturbance. Several cases are presented to demonstrate and verify the concept presented in this paper.


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    Title :

    Instrument Attitude Precision Control


    Contributors:
    J. N. Juang (author)

    Publication date :

    2004


    Size :

    35 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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