The design of the scan platform control for the Galileo spacecraft is described. Emphasis is given to the inertial pointing of the scan platform when the spacecraft is in the dual-spin configuration. The various methods of operation used in Galileo scan pointing are outlined. Important design considerations, such as spacecraft flexibility and the separation of the actuator and sensor by a flexible structure, are discussed. An explanation is given of the pointing requirements imposed on the scan platform control. Also given is a high level description of the relevant scan pointing algorithms. The performance of the design is demonstrated by means of a sample slew test case. The simulation program used in the test includes models of the flexibility of the stator structure, the friction in the clock and cone actuators, the gyro sensor characteristics, and the system time delays.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    The design of the Galileo scan platform control


    Contributors:
    Chodas, J. L. (author) / Man, G. K. (author)

    Conference:

    Guidance and Control Conference ; 1982 ; San Diego, CA


    Publication date :

    1982-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Design of the Galileo scan platform control

    Chodas, J. L. / Man, G. K. | NTRS | 1984


    Design of the Galileo scan platform control

    CHODAS, J. L. / MAN, G. K. | AIAA | 1984


    The design of the Galileo scan platform control

    CHODAS, J. / MAN, G. | AIAA | 1982


    Command profile for Galileo scan platform control

    Man, G. K. / Breckenridge, W. G. | NTRS | 1981