The invention provides a double-satellite formation tracking and pointing combined tracking attitude dimension reduction design method, which comprises the following steps of: 1, establishing orbit recursion of satellites and a target satellite according to orbit information of the satellites obtained by ground measurement and control and the target satellite obtained by tracking and pointing measurement, and obtaining relative positions of the satellites and the target satellite under a geocentric inertial system, establishing a two-satellite relative motion model; 2, establishing a unique non-singular tracking imaging rectangular coordinate system as a reference coordinate system for attitude determination; 3, converting inter-satellite data into the reference coordinate system, and establishing an attitude equation; and 4, differentiating the motion equation of the reference coordinate system, deducing a motion characteristic description method, and completing motion characteristic description of the reference coordinate system in combination with a calculation method of the angular velocity of the attitude reference coordinate system. According to the method, the application range of target star tracking imaging can be expanded, and the method can be effective in a more complex orbit and a more flexible formation distance.

    本发明提供一种双星编队跟瞄联合跟踪姿态降维设计方法,其包括如下步骤:步骤一:根据地面测控得到的卫星以及跟瞄测量得到的目标星的轨道信息建立卫星及目标星的轨道递推,得到地心惯性系下卫星与目标星的相对位置,建立两星相对运动模型;步骤二:建立唯一无奇异的跟踪成像直角坐标系,作为姿态确定的基准坐标系;步骤三:将星间数据转换到该基准坐标系下,建立姿态方程;步骤四:对基准坐标系运动方程进行差分,推导运动特性描述方法,结合姿态基准坐标系的角速度的计算方法,完成对基准坐标系运动特性描述。本发明能够扩展对目标星跟踪成像应用范围,使其能够在更复杂的轨道、更灵活的编队距离下都能够有效。


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    Title :

    Double-satellite formation tracking and pointing combined tracking attitude dimension reduction design method


    Additional title:

    双星编队跟瞄联合跟踪姿态降维设计方法


    Contributors:
    WANG JINGJI (author) / LIU XIAO (author) / YIN JUNXIONG (author) / ZHU HE (author) / LIU CHUNYANG (author) / SHAO ZHIJIE (author) / FENG BAOMIN (author)

    Publication date :

    2023-03-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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