The Annular Suspension and Pointing System (ASPS) can provide high accurate fine pointing for a variety of solar-, stellar-, and Earth-viewing scientific instruments during space shuttle orbital missions. In this report, a detailed nonlinear mathematical model is developed for the ASPS/Space Shuttle system. The equations are augmented with nonlinear models of components such as magnetic actuators and gimbal torquers. Control systems and payload attitude state estimators are designed in order to obtain satisfactory pointing performance, and statistical pointing performance is predicted in the presence of measurement noise and disturbances.


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    Title :

    Nonlinear analysis and performance evaluation of the Annular Suspension and Pointing System (ASPS)


    Contributors:

    Publication date :

    1978-08-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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