移动平台对无线信道特性的影响分析  

Analysis of the Influence of Mobile Platform on Wireless Channel Characteristic

作　　者：王波[1] 叶晓慧[1] 

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《电讯技术》2008年第9期10-14,共5页Telecommunication Engineering

基　　金：海军工程大学自然科学基金资助项目(HGDJJ06018)

摘　　要：针对移动平台对无线信道特性的影响,在分析移动多径信道特性的基础上,建立了不同信道模型下多普勒效应的计算机仿真模型。不仅针对不同信道衰落条件下平台移动引起的多普勒效应进行仿真,而且为进一步阐述多普勒效应的影响,还对平台移动引起的数字通信误码率进行了仿真。信真结果表明,平台移动不但会扩展多普勒频谱,而且会加快信道衰落,造成误码率上升。Aiming at the influence of mobile platform on wireless channel characteristic, the computer simulation models of Doppler effect are established in different channels on the basis of analyzing the characteristic of mobile multipath channels. The influence of Doppler effect on different channels characteristic is simulated, and in order to further describe the influence of Doppler effect, the influence of platform moving on digital communication BER is also simulated. The simulation results show that platform movement not only spreads the Doppler spectrum, but also accelerates channels fading and increases the BER.

关 键 词：移动通信 多径信道 多普勒效应 信道特性 误码率分析 

分 类 号：TN924[电子电信—通信与信息系统] TN911.5[电子电信—信息与通信工程]