Autonomous attitude acquisition for a stellar inertial attitude
determination system
    1.
    发明授权
    Autonomous attitude acquisition for a stellar inertial attitude determination system 失效
    一种恒星惯性姿态测定系统的自主态度采集

    公开(公告)号:US6108594A

    公开(公告)日:2000-08-22

    申请号:US87409

    申请日:1998-05-29

    摘要: A method and apparatus for autonomous acquisition of attitude in a stellar inertial spacecraft attitude system is disclosed. The present invention uses star trackers, an on-board star catalog, spacecraft steering and inertial sensors to determine spacecraft attitude. The present invention utilizes pattern match and pattern rejection methods and uses multiple stellar snap-shots in conjunction with spacecraft steering and spacecraft inertial measurements to acquire spacecraft attitude. Spacecraft inertial measurements are used to connect multiple stellar snap-shots to provide adequate star information that can be used to acquire spacecraft attitude. In an attitude determination system using star trackers, the star trackers may have a narrow field-of-view or few stars may be available for viewing. The present invention uses pattern matching and pattern rejection on different sets of stars, thereby allowing attitude acquisition when the number of stars in view is small.

    摘要翻译: 公开了一种用于在恒星惯性航天器姿态系统中自动获取姿态的方法和装置。 本发明使用星形跟踪器,一个车载星形目录,航天器转向和惯性传感器来确定航天器的姿态。 本发明利用模式匹配和模式排斥方法,并结合航天器转向和航天器惯性测量使用多个恒星卡扣,以获得航天器的姿态。 航天器惯性测量用于连接多个恒星快照,以提供可用于获取航天器姿态的足够的星级信息。 在使用星形跟踪器的态度确定系统中,星形跟踪器可以具有窄的视场或几颗恒星可用于观看。 本发明在不同的星星集合上使用模式匹配和模式抑制,从而当观看的星星数量小时允许姿态采集。