低轨卫星通信星地间无线信道传播特性研究  

Research on Channel Modeling for LEO Satellite Communications

作　　者：马玉娟 李侠宇 Ma Yujuan;Li Xiayu(China Academy of Information and Communications Technology,Beijing 100083,China)

机构地区：[1]中国信息通信研究院,北京100083

出　　处：《信息通信技术》2024年第5期12-18,共7页Information and communications Technologies

基　　金：北京市科技计划项目“高带宽高精度卫星通信终端综合测试仪表研制”。

摘　　要：卫星无线信道仿真是卫星移动通信的必要工作。文章归纳卫星通信典型的大尺度衰落、小尺度衰落特性,同时介绍高斯白噪声滤波法、Rayleigh信道建模、Rician信道建模等基于卫星统计信道建模方法。针对低轨卫星星信道冲击响应庞大的数据,通过数据拆分,降低数据处理的难度。Satellite wireless channel simulation is a necessary task for satellite mobile communication.This article summarizes the typical characteristics of large-scale fading and small-scale fading in satellite communication,and introduces satellite statistical channel modeling methods such as Gaussian white noise filtering,Rayleigh channel modeling,Rician channel modeling,etc.In response to the massive data of impulse response in low Earth orbit satellite channels,data splitting has been used to reduce the difficulty of data processing.

关 键 词：卫星通信 无线信道 大尺度衰落 小尺度衰落 统计信道建模 

分 类 号：TN927.2[电子电信—通信与信息系统]