基于对中轨卫星通信系统星座覆盖性能进行分析的目的,本文利用STK建立了两种典型的中轨道卫星通信系统星座的仿真模型,通过星座仿真模型分别对其全球覆盖性能和区域覆盖性能进行了仿真分析.仿真结果表明,ICO和Odyssey卫星通信系统星座的全球平均覆盖率均为100%,对北京区域的双星覆盖率均为100%,三星覆盖率分别为87.5%,89.8%,四星覆盖率分别为70.3%,34.2%,五星覆盖率分别为21.1%,3.1%.在全球覆盖性能方面,ICO星座和Odyssey星座均具有良好的覆盖性能;在区域覆盖性能方面,前者的多星覆盖性能远优于后者.%Based on the analysis of the constellation coverage performance of the satellite communication system,this paper uses STK to set up two constellation simulation models of the typical satellite communication system. Then the simulation and analysis of their global and regional coverage performance are carried out.The simulation results show that the global coverage rate of ICO and Odyssey are 100%. In Beijing region,the double-satellite coverage rate for is 100%,and the triple-satellite coverage rates are 87.5%and 89.8%,and the four-satellite coverage rates are 70.3%and 34.2%,and the five-satellite coverage rates are 21.1% and 3.1%. The ICO has fine global coverage performance with Odyssey and its multiple coverage performance is even better than that of Odyssey in Beijing region.
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