摘要
全球部署地球同步轨道卫星时面临的全实时测控问题,设计综合利用星地链路和星间链路的测控方案.该方案将测控任务划分为视线内和视线外两个阶段,视线内以星地链路为主,星间链路为辅,完成测控/数传信息的实时传输;视线外通过构建数据数传接力星形成体系内星间链路,结合北斗导航星座星间链路/中继卫星星间链路构成体系外星间链路,实现测控/数传信息的实时传输.分析测控/数传链路在任务周期内的链路余量、传输时延等指标,评估了方案的可靠性.结果表明,该文设计的方案测控任务的可靠度在0.99以上,数传任务的可靠度可达0.9,能够有效支持地球同步带卫星全球部署,满足测控任务需求.
In order to realize the real-time measurement and control of geosynchronous orbit satellite during the process of global deployment,a TT&C scheme with comprehensive utilization of satellite-ground link and inter-sat-ellite link is proposed in this paper.Based on the two stages divided by the scheme,wherein one is in the view stage and the other one is out of sight stage,a time-sharing heterogeneous architecture is constructed.In this archi-tecture,satellite-ground link is mainly used in stage one when ground station can control satellite directly,and in-ter-satellite link is the only way to measurement the object when it is out of the ground station visual range.A varie-ty of different inter-satellite links,such as inter-satellite link with observation-data-relay satellite and TDRS/BD in-ter-satellite link,are utilized.Furthermore,the communication link budget is calculated and the mission reliability is analyzed.The result shows that the scheme is feasible and reliable.
作者
尚夏
黄明
李冰
张峰
兰宝君
SHANG Xia;HUANG Ming;LI Bing;ZHANG Feng;LAN Baojun(Beijing Institute of Tracking and Telecommunications Technology,Beijing 100086,China;State Key Laboratory of Astronautic Dynamics,Xi’an 710043,China;Shanghai Institute of Satellite Engineering,Shanghai 200240,China)
出处
《空间控制技术与应用》
CSCD
北大核心
2024年第3期33-41,共9页
Aerospace Control and Application
基金
国家自然科学基金面上项目(42074025)。
关键词
地球同步轨道
星间链路
实时控制链路
可靠性
geosynchronous orbit
inter-satellite link
real-time control link
reliability
