印度区域卫星导航系统的发展现状  

Development status of the Indian regional navigation satellite system

作　　者：杨振 YANG Zhen(Sichuan Zhongshui Chengkanyun Surveying&Mapping Engineering Co.,Ltd.,Chengdu 610000)

机构地区：[1]四川中水成勘院测绘工程有限责任公司,成都610000

出　　处：《导航定位学报》2021年第3期20-25,共6页Journal of Navigation and Positioning

摘　　要：2018年4月12日,印度成功发射了第8颗导航卫星IRNSS-1I,完成印度区域卫星导航系统(IRNSS)空间段的部署。目前IRNSS共有8颗在轨卫星,其中7颗卫星用于发送导航信号,一颗星载原子钟失效的卫星IRNSS-1A用来播发短报文。介绍了IRNSS的导航卫星的发展历程;导航星座的特点;发展计划及INRSS的定位精度。The Indian Space Research Organisation(ISRO)has successfully launched the India's eighth navigation satellite IRNSS-1I,and the space segment of the Indian Regional Navigation Satellite System(IRNSS)has been completed.At present the IRNSS constellation has 8 satellites on orbit,7 satellites of which are used to send navigation signals and the another one IRNSS-1A with the on-board atomic clock failure is being used for short message broadcast service.The development history of IRNSS,the features of the IRNSS constellation,the development plan and the positioning accuracy of INRSS are introduced.

关 键 词：区域卫星导航 导航星座 星载原子钟 短报文服务 

分 类 号：P228[天文地球—大地测量学与测量工程]