GEO卫星信道建模分析及实时模拟环境构建  

Channel Analysis and Real-time Channel Simulator for GEO Satellite Communication

作　　者：吕国成[1] 赵燕飞 李毅 Lü Guocheng;ZHAO Yanfei;LI Yi(School of Electronics Engineering and Computer Science,Peking University,Beijing 100871,China;PLA 61648;Institute of System Engineering,Military Academy of Sciences,Beijing 100091,China)

机构地区：[1]北京大学信息科学技术学院,北京100871 [2]61648部队 [3]军事科学院系统工程研究院,北京100091

出　　处：《实验室研究与探索》2021年第9期133-137,共5页Research and Exploration In Laboratory

摘　　要：构建基于Matlab与Hollis的实时模拟环境,满足多种应用场景下卫星通信实验教学及科研需求。该模拟环境对典型应用场景下的卫星信道进行建模分析,采用Maltab GUI进行信道参数分析计算,将得到的信道参数(信噪比、传输时延、频偏等)注入Hollis信道模拟器,实现对各种典型应用场景(静止、车载、船载、机载等)下卫星信道的实时模拟。与采用实际卫星环境相比,该模拟环境成本低、构建简单,可以为相关卫星科研及教学项目提供有力支撑。A real-time channel simulator environment based on Matlab and Hollis is built,it meets the experimental teaching and scientific research requirements of satellite communication under various application scenarios.Firstly,satellite channel of typical application scenarios is modeled and analyzed,and then some basic parameters of channel transmission are calculated with Matlab GUI,the obtained channel parameters(signal to noise ratio,transmission delay,frequency offset,etc.)are used to do configuration of Hollis.The environment provides a real-time satellite channel simulator for various typical scenario(static,vehicle,ship,airborne,etc.).Compared with the actual satellite environment,the simulated environment is relatively low cost and simple construction,which can provide strong support for relevant satellite research and teaching projects.

关 键 词：卫星通信 MATLAB软件 Hollis信道模拟器 

分 类 号：TM132[电气工程—电工理论与新技术]