陆基远程和超远程无线电导航系统发展现状与趋势  

Development status and trend of land-based radio navigation system

作　　者：甄卫民[1] 丁长春 ZHEN Weiming;DING Changchun(China Research Institute of Radio wave propagation , Qingdao 266107, China)

机构地区：[1]中国电波传播研究所,山东青岛266107

出　　处：《全球定位系统》2019年第1期10-15,共6页Gnss World of China

基　　金：城市区域及重点设施GNSS干扰检测与定位新技术及应用示范项目(2018YFB0505100)

摘　　要：高频电磁环境日益复杂,为了提高定位导航授时(PNT)系统的可靠性,需要研发不依赖于卫星导航的陆基无线电导航系统.陆基无线电导航系统具有工作频率低、发射功率大等特点,可靠性高,不易被干扰,可以作为卫星导航系统的备份,因此,发展建设陆基无线电导航系统对于构建稳健可靠的国家PNT体系、保障国家安全和国民经济的发展具有重要意义.文中就国内外陆基远程及超远程无线电导航系统的发展现状及趋势进行了分析.Positioning,navigation and timing(PNT)system is an essential infrastructure for the normal operation of modern society.The achievements made in military,economic and other fields of national economy and people’s livelihood in recent years are obvious to all.However,with the increasingly complex high-frequency electromagnetic environment,in order to improve the reliability of PNT system,it is necessary to develop land-based radio navigation system that does not rely on satellite navigation.Land-based radio navigation system has the characteristics of low working frequency and large transmitting power,so it has high reliability and is not easy to be interfered with,and can be used as a backup of satellite navigation system.The development and construction of land-based radio navigation system is of great significance to the establishment of a robust and reliable national positioning,navigation and timing(PNT)system and the guarantee of national security and the development of national economy.This paper analyzes and introduces the development status and trend of land-based radio navigation system at home and abroad.

关 键 词：定位导航授时 陆基无线电 低频 甚低频 

分 类 号：P228.4[天文地球—大地测量学与测量工程]