利用halo导航星的地月空间联合自主轨道确定  

Linked Autonomous Orbit Determination of Satellites in Cislunar Space and Lunar Halo Orbit

作　　者：刘磊[1] 刘也 程潏 刘勇[1] LIU Lei;LIU Ye;CHENG Yu;LIU Yong(China National Key Laboratory of Aerospace Flight Dynamics,Beijing Aerospace Control Center,Beijing 100094,China;Beijing Institute of Tracking and Telemetry Technology,Beijing 100094,China;School of Automation,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]北京航天飞行控制中心航天飞行动力学技术重点实验室,北京100094 [2]北京跟踪与通信技术研究所,北京100094 [3]北京邮电大学自动化学院,北京100876

出　　处：《宇航学报》2023年第8期1151-1159,共9页Journal of Astronautics

基　　金：国家自然科学基金(11303001,11773004,61573049,11902027)。

摘　　要：面向未来地月空间的自主导航定位需求,研究了利用halo导航星的地月空间联合自主轨道确定(LAOD)。首先,建立了基于星间测距的地月空间联合自主定轨模型;其次,讨论了利用halo导航星联合自主定轨的可观性;最后,数值分析了不同误差条件下导航星与用户星的联合自主定轨精度,其中用户星轨道涵盖了典型的地月空间任务轨道,包括低地球轨道(LEO)、地月转移飞行轨道(CTT)和环月低轨道(LLO)。针对CTT自主定轨精度问题,特别分析了利用2颗halo导航星的定轨情况。结果表明,单颗halo导航星条件下LEO和LLO的定轨精度最高,导航星次之,CTT最差,增加1颗halo导航星可将CTT的定轨精度提高至少2倍,可为星间联合自主轨道确定技术在后续月球和深空探测任务中的应用提供参考借鉴。Linked autonomous orbit determination(LAOD)of satellites in the cislunar space and lunar halo orbit is investigated to better cope with the increasing requirement of autonomous navigation and positioning in the near-future cislunar space missions.The LAOD model is first built using inter-satellite range measurement based on the LiAISON method,in which the navigation satellite is on the lunar libration point orbit.The observability of LAOD is then discussed.Finally,the precision of LAOD is numerically evaluated with various error conditions and for different combinations of halo and user satellites.The orbits of the user satellites consist of three representative kinds in the cislunar space missions,i.e.,the low Earth orbit(LEO),cislunar transfer trajectory(CTT)and low lunar orbit(LLO).Aiming at the issue of CTT precision,the LAOD with two halo satellites is specially presented.The results show that the precision of LEO and LLO is higher than that of halo,while CTT has the lowest precision with only a single halo satellite used but can achieve the least twice increasement of precision if another halo satellite added.This research can serve as reference for the utilization of LAOD technique in the future missions of cislunar space and beyond.

关 键 词：HALO轨道 星间测量 联合自主定轨 地月空间 月球探测 

分 类 号：V448[航空宇航科学与技术—飞行器设计]