射频信道非线性失真对多载波数字通信的影响及常用线性化技术分析  

Impact of Non-linear Distortion of RF Channel on Multi-carrier Communication Systems and Analysis of Commonly-used Linearization Technology

作　　者：校莉[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2011年第7期122-127,共6页Telecommunication Engineering

摘　　要：讨论了信道非线性特性引起的各种失真特性,利用仿真软件比较了信道非线性对单载波和多载波数字通信的影响,总结并分析了目前常用的信道线性化技术,对于高频段多载波数字通信系统射频信道的线性化设计具有一定的指导意义。The distortions caused by non-linear characteristic of RF channels are discussed. The impacts of nonlinear channel on mono-carrier and multi-carrier digital communication are compared through simulation. The commonly - used linearization technology for compensating nonlinear distortions is summarized and analysed. The research and conclusions can provide important reference for the design of RF channels linearization in high frequency mnlti-carrier digital communication systems.

关 键 词：多载波通信 射频信道 非线性失真 信道线性化 交调干扰 DOHERTY功放 

分 类 号：TN911[电子电信—通信与信息系统]