低轨导航增强技术发展综述  

Overview of Low Earth Orbit(LEO)Navigation Augmentation Technology

作　　者：李敏[1] 黄腾达 李文文[1] 赵齐乐[1] LI Min;HUANG Tengda;LI Wenwen;ZHAO Qile(GNSS Research Center,Wuhan University,Wuhan 430079,China)

机构地区：[1]武汉大学卫星导航定位技术研究中心,湖北武汉430079

出　　处：《测绘地理信息》2024年第1期10-19,共10页Journal of Geomatics

基　　金：国家自然科学基金(42004020,42030109,42204019);中国博士后科学基金(2021M692460)。

摘　　要：低轨卫星是对中高轨GNSS卫星的重要补充,能够增强GNSS系统的精度、可靠性、完好性和可用性。随着近年来低轨星座的建设,低轨导航增强技术已经成为当前导航定位领域发展的重要方向。本文对低轨导航增强技术的现状和发展进行总结和梳理,讨论并分析了低轨导航增强技术的发展和应用需要解决的关键问题及其带来的发展机遇。Low earth orbit(LEO)satellites are important complements to current GNSS constellations mainly compris⁃ing medium and geostationary satellites.The accuracy,reli⁃ability,integrity and availability of GNSS systems can be sig⁃nificantly enhanced with dedicated LEO constellation.Due to the rapid development of LEO constellations in recent years,LEO navigation augmentation technology has become an im⁃portant direction of development in the current navigation and positioning field.This paper summarizes the current research status and development of LEO navigation augmentation technology,discusses and analyzes some key issues that need to be solved for the development and application of LEO naviga⁃tion augmentation technology and the opportunities it brings.

关 键 词：低轨导航增强 全球导航定位系统 星基增强 联合定轨 

分 类 号：P228[天文地球—大地测量学与测量工程] TN967[天文地球—测绘科学与技术]