16APSK-OOFDM系统分析研究  

Research and analysis on 16APSK-OOFDM system

作　　者：华建成[1] 梁猛[2] 巩稼民[2] 

机构地区：[1]西安邮电大学通信与信息工程学院,陕西西安710121 [2]西安邮电大学电子工程学院,陕西西安710121

出　　处：《现代电子技术》2014年第14期11-13,17,共4页Modern Electronics Technique

基　　金：陕西省教育厅科学研究计划基金项目(11JK1020);西安市科技计划项目(CX12188)

摘　　要：基于Optisystem和Matlab软件构建相干解调光正交频分复用(CO-OFDM)系统仿真平台。从O-OFDM的调制出发,在Optisystem中用幅度相位键控(APSK)调制代替现在主流使用的方形正交振幅调制(QAM)。分析APSK调制在光通信中的优越性,并将得到的仿真星座图、误码率、线宽与QAM调制下的结果相互对比,从而区分APSK调制比QAM调制优越性并总结规律。A system simulation platform of CO-OFDM （coherent detection optical orthogonal frequency division multiplexing）was established on the basis of the softwares Optisystem and Matlab. Starting from the O-OFDM（optical orthogonal frequency division multiplexing）modulation,APSK（amplitude and phase shift keying）modulation was adopted in the software Optisystem to replace the square QAM（quadrature amplitude modulation）modulation that is prevalently used in the software Optisystem and Matlab. The the advantages of APSK in optical communication is analyzed. The constellation graph,BER and linewidth getting from the simulating results are compared with the results from QAM,so as to determine the superiority of APSK modulation which is better then QAM modulation. The relative law is summarized.

关 键 词：光正交频分复用 幅度相移键控 正交幅度调制 光通信 

分 类 号：TN919-34[电子电信—通信与信息系统]