一种新型准静态拓扑LEO/MEO卫星光网络设计  

Designing of a novel quasi-static topology of LEO/MEO two-layered optical satellite network

作　　者：李勇军[1] 赵尚弘[1] 吴继礼[1] 李田[1] 戴国梁[1] 侯睿[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077

出　　处：《光学技术》2009年第1期67-69,73,共4页Optical Technique

基　　金：国家高技术研究发展(计划863)基金资助(2007AA01Z294)

摘　　要：设计了一种新型的LEO/MEO全球覆盖双层卫星光网络,该结构具有稳定的MESH型连接关系,不仅满足卫星光通信捕获追踪和瞄准ATP(acquisition tracking and pointing)要求,还能简化星载处理和交换,降低路由开销。推导了同层和异层间星间链路空间位置表达式。数值仿真结果表明该网络相邻卫星间距离、方位角和俯仰角变化范围小,非常适合卫星激光链路,可作为构建未来卫星激光网络的参考。A novel two-layered optical satellite network of LEO/MEO with global coverage is designed, which has the quality of quasi-static connectivity of MESH. It satisfies the demand of ATP（acquisition, tracking and pointing） in optical satellite communication and simplifies processing, switching on board satellite, reducing routing overhead. Spacing position expressions of inter-satellite links between the same and different layers are deduced. Simulation results show ranges of distance, azimuth and elevation between two neighboring satellites are small. It＇s very fit for optical inter-satellite links and can be considered as the reference of building up future optical satellite networks.

关 键 词：卫星通信 卫星光网络 星座设计 静态拓扑 

分 类 号：TN929.1[电子电信—通信与信息系统]