移动卫星通信中切换的中断概率分析  

On the Outage Probability of Handover in the Nongeostationary Orbit Mobile Satellite communication

作　　者：曹世文[1] 吴诗其[1] 李乐民 

机构地区：[1]成都电子科技大学信息所

出　　处：《电子科技大学学报》1995年第6期567-570,共4页Journal of University of Electronic Science and Technology of China

基　　金：国家科委863高科技项目和高校博士点基金

摘　　要：由于非静止轨道中移动卫星系统具有多波束天线和多颗卫星的星座设计，因而存在波束或卫星间的切换。文中分析了切换中断概率与轨道高度、波束半径、平均通话时长、每波束信道数及多星选择策略的关系，得到了一些理论结果。文中对理论结果进行了数值计算与计算机仿真，得出的结论对设计移动卫星系统有参考价值。There are handovers among cells and satellites due to the use of the multibeam antenn and the design of multi-satellite constellation for the nongeostationary orbit mobile satellite system.This paper analyses the average handover outage probability and the relationship between outage probability and orbitheight,beam zone radius and average talk duration as well as the number of channel per-cell.The theoriticalresults are obtained and the numerical calculation is Carried out.Finally,the conclusions are helpful for thedesign of mobile satellite communication systems.

关 键 词：移动卫星通信 非静止轨道 切换 中断概率 

分 类 号：TN927.2[电子电信—通信与信息系统]