应用GNSS数据拟合的卫星自主维持星座构型策略  

Autonomous Maintenance Strategy for Constellation Configuration by Satellite Using GNSS Data Fitting

作　　者：齐彧 李新刚[1] 林骁雄 QI Yu;LI Xin’gang;LIN Xiaoxiong(Institute of Telecommunication and Navigation Satellites,China Academy of Space Technology,Beijing 100094,China)

机构地区：[1]中国空间技术研究院通信与导航卫星总体部,北京100094

出　　处：《航天器工程》2022年第2期12-18,共7页Spacecraft Engineering

基　　金：国家重大航天工程。

摘　　要：利用全球导航卫星系统(GNSS)数据拟合得到在轨情况下的相对半长轴拟合结果,并以此为输入构建应用GNSS数据拟合计算的卫星自主维持星座构型策略。自主构型维持策略根据卫星轨道纬度幅角与半长轴之间的微分关系与星载GNSS接收机测量得到的高精度纬度幅角信息,对星座构型维持过程中相对半长轴的变化情况进行拟合计算,得到高精度的相对半长轴拟合计算结果,从而大幅度提高利用GNSS数据对轨道相对半长轴的测量精度。对极轨星座的仿真结果表明:上述星座构型维持策略能够有效提高构型维持精度,可以满足未来大规模星座自主高精度构型维持的需求。An autonomous maintenance strategy for the constellation configuration is proposed, according to the relative semi-major axis fitting with the high-precision data measured by the GNSS(Global Navigation Satellite System).The autonomous maintenance strategy improves the mea surement accuracy of the relative semi-major axis by taking advantages of both the high-precision argument of latitude information measured by the GNSS receiver, establishing the differential relationship between the semi-major axis and the relative argument of latitude, and obtaining the high-precision relative semi-major axis. The simulation results show that the aforementioned autonomous maintenance strategy for constellation configuration based on GNSS data fitting can effectively improve the configuration maintenance accuracy, and can meet the autonomous high-precision maintenance requirements of mega-constellation in the future.

关 键 词：星座构型 自主维持 全球导航卫星系统数据 轨道测量 拟合计算 

分 类 号：V474[航空宇航科学与技术—飞行器设计]