The invention discloses a spacecraft differential game interception control method under incomplete information, and belongs to the field of spacecraft game control. The problem that in the spacecraft pursuit process, due to the fact that target information is incomplete, a game interception strategy deviates from the actual situation, and rapid interception cannot be achieved is solved. Comprising the steps of obtaining a relative kinetic equation expansion of an interception star and a target star; determining a game index function of the interception satellite and the target satellite under the optimal control strategy; setting a symmetric positive definite matrix P, and establishing a saddle point strategy pair of the intercepted star and the target star meeting Nash equilibrium; a saddle point strategy pair is described by adopting an Epsilon Nash equilibrium pair, and then a target star control matrix estimation value is estimated through a behavior learning algorithm; and determining the symmetric positive definite matrix P according to the constraint condition of the symmetric positive definite matrix P based on the estimated value of the target satellite control matrix, calculating to obtain an estimated interception satellite game control strategy, and carrying out interception control on the target satellite by adopting the thrust game strategy. The method is used for intercepting the target satellite.

    一种不完全信息下的航天器微分博弈拦截控制方法,属于航天器博弈控制领域。本发明针对航天器追逃过程中,由于目标信息不完全导致博弈拦截策略偏离实际态势,无法实现快速拦截的问题。包括获得拦截星与目标星的相对动力学方程展开式;再确定拦截星与目标星在最优控制策略下的博弈指标函数;设定对称正定矩阵P,建立拦截星与目标星满足纳什均衡的鞍点策略对;采用Epsilon纳什均衡对描述鞍点策略对,再通过行为学习算法估计得到目标星控制矩阵估计值;基于目标星控制矩阵估计值,由对称正定矩阵P的约束条件确定对称正定矩阵P,再计算得到估计后的拦截星博弈控制策略,采用所述推力博弈策略对目标星进行拦截控制。本发明用于对目标星进行拦截。


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    Title :

    Spacecraft differential game interception control method under incomplete information


    Additional title:

    不完全信息下的航天器微分博弈拦截控制方法


    Contributors:
    YE DONG (author) / TANG XU (author) / XIAO YAN (author) / JIA ZHEN (author) / YANG JIAHAO (author) / LI HUAYI (author) / SUN ZHAOWEI (author)

    Publication date :

    2023-11-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS