基于信道特性的低轨卫星切换性能研究  

The Research on Performance of Handoff in LEO Satellite based on Channel Characteristic

作　　者：朱析[1] 李庆[1] 朱立东[1] 张旭[1] 郑磊[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,成都610054

出　　处：《空间电子技术》2009年第2期8-12,23,共6页Space Electronic Technology

摘　　要：在卫星与地面终端之间的星地链路中,存在复杂多变的信道环境,这些因素对系统的切换性能有着重要影响。文章首先建立星地信道模型,并将此模型应用于切换过程,通过仿真得到信道特性对于切换性能的具体影响。There are complex and time-varying channel conditions between LEO satellite and terrestrial users, these factors would have important impact on handover performance. This paper constructs channel model first and applys the model in the process of handoff. At last,the influence of channel model on handoff performance is got by simulation.

关 键 词：LEO卫星 信道模型 切换 

分 类 号：TN929.5[电子电信—通信与信息系统] TM73[电子电信—信息与通信工程]