摘要
自1998年铱星系统建成以来,低轨星座发展迅速,低轨卫星导航技术的发展建设为导弹等飞行器提供了又一导航技术途径。详细介绍铱星、全球星、轨道通信、一网、星链、鸿雁、虹云等低轨系统星座信息、系统功能与性能指标;对各星座采用的发射、构型、星间链路等关键技术进行总结,分析各技术的发展趋势与其带来的优势;详细介绍了低轨星座的导航算法发展历程,分析低轨卫星系统对于多普勒频率定位与精密单点定位导航精度提升的作用;总结未来低轨星座与低轨导航算法发展方向,对低轨星座卫星星座与导航算法的后续研究具有参考意义。
LEO constellation has developed rapidly since the establishment of Iridium satellite system in1998,and the rapid development of LEO constellation navigation algorithm provides another approach for missiles and other aircrafts.The constellation information,system functions and performance of LEO constellation including Iridium satellite,Globalstar,Orbcomm,OneWeb,Starlink,Hongyan and Hongyun are introduced in detail.The key technologies of launch,configuration and inter-satellite link are summarized,and the development trend and advantages of these technologies are analyzed.Then development of LEO constellation navigation algorithm is detailed,and the effect of LEO constellation on improving the navigation accuracy of doppler frequency positioning and precise point positioning is analyzed.Finally,the trend of LEO constellation and LEO navigation algorithm is summarized,which has reference for the following research of LEO constellation satellite constellation and navigation algorithm.
作者
李怀建
韦彦伯
杜小菁
Li Huaijian;Wei Yanbo;Du Xiaojing(School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China)
出处
《战术导弹技术》
北大核心
2021年第3期57-66,共10页
Tactical Missile Technology
基金
航天器设计优化与动态模拟技术教育部重点实验室(北京航空航天大学)开放基金(2019KF002)。
关键词
低轨星座
星座构型
星间链路
卫星导航算法
多普勒频率定位
精密单点定位
LEO constellation
constellation configuration
inter-satellite link
satellite navigation algorithm
doppler frequency positioning
precise point positioning
