摘要
为解决全球范围内不间断的天基通信问题,对我国现有的天基通信保障系统的通信效能进行了分析。北斗导航卫星(BDS)有着可全球覆盖的优势,可提供全天候、全天时的测控、导航、通信服务。以BDS星间链路系统为应用背景,对多种典型应用场景建立STK仿真模型,分析了3种场景下的BDS星间链路系统全球覆盖能力。仿真结果表明,通过卫星转发的形式可满足全球范围内的不间断通信保障,通信效能可满足短消息、语音的通信要求;对于高机动的临近空间飞行器在姿态调整过大时可能出现的通信链路中断问题,给出了合理可行的切星方案;对BDS星间链路系统的任务时效性进行了理论计算和分析。
In order to solve the uninterrupted space-based communication problem in the world,the communication efficiency of the existing space-based communication support system in China is analyzed.BeiDou Navigation Satellites has the advantage of global coverage,which can provide all-weather and allday TT&C(Tracking Telemetering and Command),navigation and communication sevices. Based on the application background of BDS ISL(Inter-Satellite Link system),STK(System Toolkit) simulation models are established for three typical application scenarios,the global coverage in three scenarios are analyzed. The simulation results show that the satellite forwarding mode can meet the global uninterrupted communication guarantee,and the communication efficiency can meet the communication requirements of short message and voice. A reasonable and feasible star cutting scheme is given for the communication link interruption problem that may occur when the attitude adjustment of highly maneuvering near space vehicles is too large. The task timeliness of BDS ISL system are theoretically calculated and analyzed.
作者
李申阳
王海涛
张佳培
田广宇
于雪晖
LI Shenyang;WANG Haitao;ZHANG Jiapei;TIAN Guangyu;YU Xuehui(Space Star Technology Co.,Ltd.,Beijing 100091,China;Macro Net Communication Co.,Ltd.,Beijing 100086,China)
出处
《电子设计工程》
2022年第13期33-37,共5页
Electronic Design Engineering
关键词
北斗导航卫星
星间链路
通信效能
通信时延
BeiDou navigation satellites
inter-satellite link
communication efficiency
communication delay
