正交频分复用数字调制技术  

Orthonormal FDM Digital Modulation Technique

作　　者：叶秉堃[1] 阎忠平[2] 

机构地区：[1]华北电力大学(北京),北京102206 [2]华北电力调度局,北京100053

出　　处：《现代电力》2000年第4期19-23,共5页Modern Electric Power

摘　　要：介绍一种可较好地解决多径衰落所引起的信道选择性衰落 ,又可克服信道的瑞利衰落、性能优良的正交频分复用数字调制技术。它是通过多载波的并行传输方式将 N个单元码同时传输 ,来取代通常的串行码序列传送 ,使每个单元码所占的频带小于Δf 。The paper introduces a kind of orthonormal frequrncy division multiplexing(FDM) digital modulation technique with a good performance which can solve,in some way,the fading problem of both the channel selective one resulted from multi\|path fading and Rayleigh fading.Instead of serial transmission of symbols,multiple carriers(N carriers)are used so that N parallel symbols are transported simultaneously,which results in frequency band occupied per symbol less than of and prevents symbols interference.

关 键 词：数字调制 正交频分复用 通信 码间干扰 

分 类 号：TN911.3[电子电信—通信与信息系统]