一种引力波探测卫星动态姿态规划方法  

A Dynamic Attitude Planning Method for Gravitational Wave Detection Satellites

作　　者：范宇麒 徐瑞[1,2] 李朝玉 朱圣英[1,2] 高艾 尚海滨[1,2] 高越 Fan Yuqi;Xu Rui;Li Zhaoyu;Zhu Shengying;Gao Ai;Shang Haibin;Gao Yue(Institute of Deep Space Exploration Technology,Beijing Institute of Technology,Beijing 100081,China;Key Laboratory of Autonomous Navigation and Control for Deep Space Exploration,Ministry of Industry and Information Technology,Beijing 100081,China;Space Star Technology Co.,Ltd.,Beijing 100086,China)

机构地区：[1]北京理工大学深空探测技术研究所,北京100081 [2]深空自主导航与控制工业与信息化部重点实验室,北京100081 [3]航天恒星科技有限公司,北京100086

出　　处：《航天控制》2022年第4期18-25,共8页Aerospace Control

基　　金：国家重点研发计划课题(2020YFC2200902);国家自然科学基金(61976020,62006019);民用航天预研(KJSP2020020302);航天飞行动力学技术国防科技重点实验室开放项目资助。

摘　　要：在引力波探测任务中,针对大尺度激光建链时目标姿态动态变化以及姿态机动约束复杂的问题,提出了引力波探测卫星动态姿态规划方法。首先给出引力波探测卫星的最优目标姿态求解方法。然后,设计了随机节点启发式扩展方法和目标姿态实时更新方法,对力矩轨迹进行平滑处理,实现了动态目标姿态规划。仿真结果表明,与经典RRT姿态规划方法相比,本文提出的方法具有更高的指向精度,并且消耗能量少,可满足引力波探测卫星大尺度建链保持的任务需求。During the misssion of gravitational wave detection, the dynamic attitude planning method of the gravitational wave detection satellite is proposed for the problems of dynamic changes of the target attitude and complex attitude maneuver constraints during the large-scale laser chain building. Firstly, the optimal target attitude solution method of the gravitational wave detection satellite is developed, and then the random node heuristic expansion method and the real-time update method of the target attitude are designed to smooth the moment trajectory and realize the dynamic target attitude planning. The simulation results show that the proposed method has higher pointing accuracy and consumes less energy, which is compared with the classical RRT attitude planning method and can meets the mission requirements of large-scale chain building and maintaining of gravitational wave detection satellites.

关 键 词：引力波 探测卫星 姿态规划 随机搜索树 动态规划 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]