低轨卫星数据链体系架构及应用前景  

Architecture and application prospect of LEO satellite data link

作　　者：陈康平 黄新明[1] 李峥嵘[1] CHEN Kangping;HUANG Xinming;LI Zhengrong(College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学电子科学学院,长沙410073

出　　处：《导航定位学报》2023年第4期113-119,共7页Journal of Navigation and Positioning

摘　　要：针对传统数据链面临的数据传输距离有限、数据传输容量受限,以及中高轨道卫星数据链存在着传输损耗大、延迟高等问题,提出基于低轨(LEO)卫星通信系统的低轨卫星数据链:介绍国内外低轨卫星通信系统的发展状况;总结加快发展建设适用于数据链的低轨通信系统和在低轨卫星中放置数据链端机2种低轨卫星数据链建设方案,并提出适合低轨卫星数据链的抗干扰通信技术和低轨卫星数据链组网的时间基准、空间基准方案;最后分析低轨卫星数据链特点。结果表明低轨卫星数据链具有广阔的应用前景。Aiming at the problems of the limited data transmission distance and limited data transmission capacity of the traditional data link,and the high transmission loss and high delay of the medium and high orbit satellite data link,the paper proposed a low-orbit satellite data link based on low-orbit satellite communication system:the development of low Earth orbit(LEO)satellite communication system at home and abroad was introduced;and the two construction schemes of LEO satellite data link,including speeding up the development and construction of the LEO satellite communication system suitable for data link and placing the data link terminal machine in LEO satellite,were summarized;then the anti-interference communication technology suitable for LEO satellite data link and the time and space benchmark scheme for LEO satellite data link networking were put forward;finally,the characteristics of LEO satellite data link were analyzed.Results showed that LEO satellite data link would have a broad application prospect.

关 键 词：数据链 低轨(LEO)卫星通信系统 低轨卫星数据链 抗干扰 时间基准 空间基准 应用前景 

分 类 号：P228[天文地球—大地测量学与测量工程]