ISSN 
LEO/MEO星座组网设计与分析
Design and Analyses of LEO/MEO Constellation Networking
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摘要: 具有星际链路的低轨(LEO)和中轨(MEO)星座组网,对构建卫星信息传送网络至关重要。该文建立了一种具有星际链路的LEO/MEO双层星座模型,对MEO、LEO星座组网进行分析,设计了卫星信息传送网络LEO/MEO星座组网仿真系统。通过STK仿真,得到LEO/MEO双层星座组网的卫星星座结构、星际和星地链路通断时间、链路传输时延等数据,分析得出具有LEO/MEO双层星座组网的卫星信息传送网络拓扑结构变化数据,并应用到卫星信息传送网络的构建中,为卫星信息传送网络综合性能的评价提供支持。Abstract: The low earth orbit (LEO) and medium earth orbit (MEO) constellation network with inter-satellite links (ISL) is a critical element in the satellite information transfer network.A 2-layer LEO/MEO constellation model with ISL is constructed.The MEO and LEO constellation networking is analyzed.The simulation system of the LEO/MEO constellation networking in the satellite information transfer network is designed.With STK simulation,the LEO/MEO constellation structure,connection/disconnection time of links between satellites,links between satellite and ground,and link transmission time delays are obtained.The topology change data of the satellite information transfer network is analyzed.The study achievements are applied into the construction of the satellite information transfer network and provide the foundation for the comprehensive performance evaluation of the satellite information transfer network.
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