摘要
定位导航和授时(PNT)系统是保障现代社会正常运转必不可少的基础设施,为了提供可靠的PNT信息服务,需要研发不依赖于卫星导航的PNT系统。介绍了国内外陆基超远程导航系统的发展情况,提出了发展基于甚低频无线电信号的陆基超远程无线电系统架构、关键技术及发展建议,陆基超远程导航系统可以在卫星导航不可用时提供备份,对于构建冗余可靠的国家PNT体系、保障PNT信息的安全及可靠性具有重要意义。
Positioning, navigation and timing （PNT） systems are indispensable infrastructures for ensuring the normal operation of modern society. In order to provide reliable PNT information services, it is necessary to develop PNT systems that do not rely on satellite navigation. This pa per introduces the development of land based ultra long range radio navigation systems domestic and abroad, and puts forward the architecture, key technologies and development proposals for de veloping land based ultra long range very low frequency radio systems. I.and based ultra long range navigation systems can provide backup when satellite navigation is unavailable. For building redundant and reliable national PNT system, it is of great significance to ensure the safety and reli ability of PNT information.
作者
胡安平
HU An ping(The 201h Research Institute of China Electronic Technology Group Corporation,Xi＇an 710068,China)
出处
《导航定位与授时》
2018年第5期1-6,共6页
Navigation Positioning and Timing
基金
军委科技委国防科技项目基金(17-H863-01-ZT-001-006-07)
关键词
定位导航授时
陆基无线电导航
甚低频
Position navigation and timing
Land based radio navigation
Very low frequency
