多星机动接近威胁下航天器反包围规避方法  

Encirclement Threat Avoidance Strategy for Multi-spacecraft Maneuvering Approach

作　　者：肖前 李林澄 张景瑞[1] XIAO Qian;LI Lincheng;ZHANG Jingrui(School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China;School of Astronautics,Beihang University,Beijing 100191,China;School of Electrical and Electronic Engineering,Nanyang Technological University,Singapore 639798,Singapore)

机构地区：[1]北京理工大学宇航学院,北京100081 [2]北京航空航天大学宇航学院,北京100191 [3]南洋理工大学电气与电子工程学院,新加坡639798

出　　处：《宇航学报》2024年第10期1578-1587,共10页Journal of Astronautics

基　　金：国家自然科学基金(12232003,12202025,11825201);国防预研基金(D030309);中国博士后科学基金(2022M710295,2021TQ0024)。

摘　　要：针对多个来袭航天器连续机动接近的威胁,提出一种基于轨道根数可达集的航天器反包围威胁规避方法。首先,给出航天器小推力机动轨道根数可达集的求解方法。其次,在轨道根数相平面中计算来袭航天器威胁在轨航天器的最小机动飞行时间,进而得到威胁“势场”与威胁区。然后,根据来袭航天器威胁在轨航天器的方位特征定义了包围威胁场景。最后,建立反包围约束条件及规避机动效能评价指标,给出了在轨航天器反包围威胁规避最优机动策略。仿真结果表明,所定义的包围威胁场景是合理的,提出的方法能够使在轨航天器对多个来袭航天器所带来的包围威胁实现机动规避,并节省燃料消耗。Under the threat of multi-spacecraft maneuvering approach,an encirclement threat avoidance strategy is proposed based on the orbital element reachable set.Firstly,the solving procedure of the orbital element reachable set for low-thrust spacecraft is given.Then,the minimum time of flight for incoming spacecraft maneuvering to threaten the target spacecraft is calculated in the orbital element phase plane,and the threat potential field and threat area are obtained accordingly.Afterward,the encirclement threat scenario is defined based on the threat direction of incoming spacecraft to the target spacecraft.Finally,the anti-encircling constraint and evaluation indexes of evasive maneuver are established,and the optimal encirclement threat avoidance maneuver strategy is given.The simulation results show that the defined encirclement threat scenarios are reasonable,and the proposed method enables the target spacecraft to avoid encirclement threats posed by multiple incoming spacecraft and save fuel consumption.

关 键 词：航天器 威胁规避 反包围 可达集 小推力 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]