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针对具有自主接近能力的航天器开展反交会规避机动方法研究。建立仅测角相对导航模型,对完全不可观测机动进行定义,基于空间几何关系推导并证明了完全不可观测机动是不存在的。以施加规避机动后追踪器对逃逸器的测量值与未机动时的差异为优化目标,利用矢量乘积原理设计目标函数,建立优化模型并对变量约束进行分析,随后采用遗传算法对最优规避机动方向进行优化。给出的仿真算例结果表明:提出的规避机动方向计算方法能够使目标函数值达到最小,从而提升追踪器对逃逸器的状态估计难度,降低其估计精度。这为规避机动问题研究提供了一种新的视角,可为以主动接近航天器为新对象进行的规避研究提供有益借鉴。
Research on Method of Avoiding Maneuver in Anti - Cross Society for Spacecraft with Autonomous Proximity Capability. Only angle-only relative navigation model was established, and completely unobservable maneuver was defined. Based on the spatial geometry, it was deduced and proved that completely unobservable maneuver did not exist. Taking the difference between the measured value of the escape device and the time when the maneuver is not maneuvering as the optimization objective, the objective function is designed by the vector product principle, the optimization model is established and the constraint of the variables is analyzed, and then the optimal avoidance maneuver Direction of optimization. The simulation results show that the proposed method to avoid the maneuvering direction can minimize the objective function, so as to enhance the tracker ’s difficulty in estimating the state of the generator and reduce its estimation accuracy. This provides a new perspective for the study of avoiding maneuvering problems and can provide a useful reference for the evasion research on the initiative of approaching spacecraft.