The invention discloses a relative pointing tracking control method under a tracking and pointing-free condition, and the method comprises the steps: measuring current orbit parameters of a tracking satellite and a target satellite, and carrying out the extrapolation to obtain future orbit parameters; calculating the relative position and directional angle data between the tracking star and the target star; fitting to obtain fitting parameters and corresponding time parameters, sending the fitting parameters and the corresponding time parameters to the tracking star, and calculating a relative directional angle, a relative directional angular velocity and a relative directional angular acceleration according to the fitting parameters and the time parameters; attitude offset is carried out according to the relative pointing angle at the starting moment, when the on-satellite time runs to the starting moment of the relative pointing angle curve, the tracking satellite is controlled to point to the tracking target satellite until the ending moment of the relative pointing angle curve, and finally the flight attitude of the tracking satellite is adjusted to return to the ground pointing attitude. According to the relative pointing tracking control method under the tracking and pointing-free condition, autonomous relative pointing control on a satellite can be realized under the condition that tracking and pointing equipment on the satellite fails, and it is ensured that loads on the satellite normally execute tasks.

    本申请公开了一种无跟瞄条件下的相对指向跟踪控制方法,包括:测量追踪星和目标星的当前轨道参数,外推得到未来轨道参数;计算追踪星和目标星之间的相对位置和指向角数据;拟合得到拟合参数和相应的时间参数并发送给追踪星,根据拟合参数和时间参数计算相对指向角、相对指向角速度以及相对指向角加速度;根据起始时刻的相对指向角进行姿态偏置,当星上时间运行到相对指向角曲线的起始时刻,控制追踪星指向跟踪目标星直至相对指向角曲线的结束时刻,最后调整追踪星的飞行姿态回到对地指向姿态。本申请的无跟瞄条件下的相对指向跟踪控制方法,能够在星上跟瞄设备失效的情况下,实现星上自主的相对指向控制,保证星上载荷正常执行任务。


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    Titel :

    Relative pointing tracking control method under tracking and pointing-free condition


    Weitere Titelangaben:

    一种无跟瞄条件下的相对指向跟踪控制方法


    Beteiligte:
    LIANG JUPING (Autor:in) / DAI WEIZONG (Autor:in) / GUO ZHENGYONG (Autor:in) / CHEN YINHE (Autor:in) / WAN HAIYIN (Autor:in) / ZHU WENSHAN (Autor:in) / FENG BAOMIN (Autor:in)

    Erscheinungsdatum :

    2023-06-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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