移动无线信道的数学仿真计算  

Mathematical simulated calculation of mobile wireless channel

作　　者：王智森[1] 王洪海[1] 房媛[1] 宁雪晶[1] 

机构地区：[1]大连工业大学信息科学与工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2009年第5期370-374,共5页Journal of Dalian Polytechnic University

基　　金：辽宁省教育科学"十一五"规划2008年度基金资助项目(JG08DB055);辽宁省高等学校优秀人才支持计划项目(2009R05)

摘　　要：移动无线信道模型的建立及仿真实验对移动通信的研究具有重要意义。本文从移动通信室外传播的物理环境分析入手,导出了窄带、宽带移动信道的物理模型及其数学表征,并离散化为数值计算仿真器。通过该仿真器,再现了窄带、宽带移动信道的物理特征,仿真结果符合实测的历史数据。本仿真器很好地表征了移动速度、传输带宽、散射环境及载波频率等因素对无线信道的影响,可作为对现有系统改进和新技术开发的仿真测试工具。The building up of mobile wireless channel model and its numerical simulation is of great importance to mobile communications. Both the narrowband and broadband mobile channels＇ physical characteristics were analyzed based on the physical environments of mobile communication signals in the open propagation, which result in setting up the related mathematical model and proposing the numerical simulator. The simulation results are conformed to the measurement data. The numerical simulator well reflected the effects of the movement speed, transmission bandwidth, scattering environment and carrier frequency. Therefore it can be expectedly used as an effective simulation tools to improve current systems and develop new technologies.

关 键 词：移动通信 移动通信信道模型 衰落 信道仿真器 

分 类 号：TN929.5[电子电信—通信与信息系统]