Patents Represented by Attorney Terje Gudemstad

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  • Method of attitude determination using earth and star sensors
    Patent number: 5412574
    Abstract: A method of attitude measurement for an artificial satellite (100) utilizes one or more star trackers (12) together with an earth sensor (30). Periodic updates of satellite orbital information, either propagated onboard or from a ground station are combined with earth and star position coordinate data to provide a continuous and accurate measurement of the spacecraft body 3-axis attitude. The method can be used for ground-based attitude determination or onboard closed loop control systems.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: May 2, 1995
    Assignee: Hughes Aircraft Company
    Inventors: Douglas J. Bender, Thomas R. Parks, Thomas F. Brozenec