考虑空间几何关系的反交会规避机动方法

发布时间：2018-03-13 17:19

本文选题：最优规避　切入点：规避机动　出处：《国防科技大学学报》2016年06期 　论文类型：期刊论文

【摘要】：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。
[Abstract]:The anti-rendezvous avoidance maneuver method is studied for spacecraft with autonomous approach capability. A relative navigation model with only measured angle is established to define completely unobservable maneuvering. Based on the spatial geometric relations, the non-existence of completely non-observable maneuvering is deduced and proved. The objective function is designed by using vector product principle in order to optimize the difference between the measured value and the non-maneuvering value of the tracer after circumventing maneuver, and the principle of vector product is used to design the objective function. The optimization model is established and the variable constraints are analyzed. Then genetic algorithm is used to optimize the optimal maneuvering direction. The simulation results show that the proposed method can minimize the value of the objective function. Thus, the difficulty of state estimation and the accuracy of state estimation are improved, which provides a new angle of view for the study of maneuvering avoidance, and provides a useful reference for the study of avoidance with active approach spacecraft as the new object.
【作者单位】：国防科技大学航天科学与工程学院;
【基金】：国家自然科学基金资助项目(11572345) 国家重点基础研究发展计划资助项目(2013CB733100)
【分类号】：V448.2

【参考文献】