面向导航卫星失效的低轨星座选星方法  

LEO Constellations Satellite Selection Methods for Navigation Satellite Failure

作　　者：薛文 贾张敏 郭雯 张勤昊 房彦龙 XUE Wen;JIA Zhangmin;GUO Wen;ZHANG Qinhao;FANG Yanlong(Space Engineering University,Beijing 101416,China;Joint Warfare College,National Defense University,Beijing 100091,China;China Satellite Maritime Survey and Control Department,Jiangyin 214400,China;Taiyuan Satellite Launch Center,Taiyuan 030001,China)

机构地区：[1]航天工程大学,北京101416 [2]国防大学联合作战学院,北京100091 [3]中国卫星海上测控部,江苏江阴214400 [4]太原卫星发射中心,山西太原030001

出　　处：《天地一体化信息网络》2025年第1期8-15,共8页Space-Integrated-Ground Information Networks

基　　金：国家自然科学基金资助项目(No.61403416)。

摘　　要：中轨导航星座面临卫星退役、信号干扰等场景下导航性能降级的问题。首先,对Walker 24/3/1中轨导航星座进行卫星失效性能分析,确定影响星座最大的失效模式。其次,利用现有部署的低轨大规模星座进行导航增强,确定单星选取和轨道面选取两种导航增强方案。最后,与参考导航星座性能进行对比确定最优方案。旨在快速弥补中轨星座卫星失效后性能降级的不足,从而降低成本并提高星座整体服务性能。The MEO navigation constellation confronts the issue of deteriorated navigation performance in the circumstances of satellite decommissioning and signal interference.Firstly,the satellite failure performance of Walker 24/3/1 MEO navigation constellation was analyzed to identify the failure mode that had the greatest impact on the constellation.Secondly,the navigation enhancement scheme of single star selection and orbital plane selection was determined by utilizing the existing LEO large-scale constellation.Finally,the optimal scheme was ascertained by comparing with the performance of the reference navigation constellation.The aim of this paper is to promptly compensate for the performance degradation following the failure of MEO constellation satellites,thereby reducing the cost and enhancing the overall service performance of the LEO constellation.

关 键 词：卫星失效 低轨大规模星座 低轨导航增强 星座选星 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]