16APSK⁃OOFDM系统分析研究作者:华建成 梁猛 巩稼民来源:《现代电子技术》2014年第14张静江
期 摘 要: 基于Optisystem企业改革与管理
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。 关键字: 光正交频分复用; 幅度相移键控; 正交幅度调制; 光通信
中图分类号: TN919⁃34 文献标识码: A 文章编号: 1004⁃373X蟛蜞菊内酯(2014)14⁃0011⁃03
Research and analysis on 16APSK⁃OOFDM system
HUAN Jian⁃cheng1, LIANG Meng2, GONG Jia⁃min2
(1. School of Communication and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, China;
2. School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, China)
Abstract:2012年7月3日 A system simulation platform of CO⁃OFDM (coherent detection optical orthogonal frequency division multiplexing他有个二弟汉寿亭侯) was established on the basis of the softwares Optisystem and Matlab. Starting from the O⁃OFDM (optical orthogonal frequency division multiplexing) modulation, APSK 中国表面工程(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.