摘要
天基物联网具有广覆盖、大容量和全天候服务的优势,其技术体制设计和星座系统建设受到了广泛关注,但技术研究和系统建设均处于探索和试验阶段。概述了现有多种天基物联网技术体制并对其特征和发展趋势进行了分析,介绍了国内外天基物联网系统规划和建设情况;最后针对未来物联业务需求和现有系统特征,分析了天基物联网系统的技术挑战和发展趋势,为未来技术研究和系统建设提供参考。
Satellite IoT(Internet of things)have the advantages of wide coverage,large capacity,and all-weather service,whose access technology and constellation system have received much attention.However,its access technology and constellation system are in the exploratory and experimental stage.This paper summarizes the access technologies of satellite IoT and analyzes their development trend.Then,the program and construction of satellite IoT constellation systems are presented.Finally,according to the IoT requirements and the system characteristics,we analyze the challenges and development of satellite IoT,which provides reference for technical research and system construction.
作者
张景
魏肖
吴云飞
崔司千
陆洲
ZHANG Jing;WEI Xiao;WU Yunfei;CUI Siqian;LU Zhou(China Academic of Electronics and Information Technology,Beijing 100041,China)
出处
《无线电通信技术》
2021年第5期543-548,共6页
Radio Communications Technology
基金
国家重点研发计划(2020YFB1807900)。
关键词
天基物联网
接入技术体制
星座系统建设
satellite internet of things
access technology
construction of constellation system
