The invention provides a relative motion adaptive control method for a small spacecraft approaching detection task, and the method is characterized in that the method comprises the following steps: 1, taking an approaching detection object as a target spacecraft, taking a small spacecraft as a service spacecraft, and constructing a relative orbit dynamic model between the target spacecraft and the service spacecraft; 2, designing a whole-process nominal flight path according to the approaching detection task requirement, wherein the whole-process nominal flight path comprises parameters of some key hovering points, a transfer path between the hovering points and transfer time; 3, representing the relative orbit dynamics model and the nominal flight path by adopting a state space; and 4, regarding the nominal flight path as a reference model, regarding the relative orbit dynamic model as a controlled object, and designing a relative motion adaptive controller by applying an adaptive control theory SAC. The method still has a good control effect under the influence factors of modeling uncertainty items, unknown interference, limited control capability and the like of a control object.

    本发明提供了一种面向微小航天器抵近探测任务的相对运动自适应控制方法,其特征在于,包括以下步骤:步骤1,将抵近探测对象视为目标航天器,将微小航天器视为服务航天器,构建两者之间的相对轨道动力学模型;步骤2,根据抵近探测任务要求设计全流程标称飞行轨迹,包括一些关键悬停点、悬停点之间转移轨迹和转移时间的参数;步骤3,将相对轨道动力学模型和标称飞行轨迹分别采用状态空间进行表示;步骤4,将标称飞行轨迹视为参考模型,将相对轨道动力学模型视为被控对象,运用自适应控制理论SAC设计相对运动自适应控制器。本发明在控制对象存在建模不确定性项、未知干扰以及控制能力有限等影响因素下,仍有良好的控制效果。


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    Title :

    Relative motion self-adaptive control method for approaching detection task of micro spacecraft


    Additional title:

    面向微小航天器抵近探测任务的相对运动自适应控制方法


    Contributors:
    LIU JIANBIAO (author) / XIAO YUZHI (author) / XU FENG (author) / LI PENG (author) / ZHU QIANGJUN (author) / GUO JING (author)

    Publication date :

    2024-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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