基于OFDM调制和Nyquist滤波的超宽通道大容量光传输  

Ultra-wideband high-capacity optical transmission based on OFDM modulation and Nyquist filtering

作　　者：杨奇[1,2] 张晓吟[1,2] 

机构地区：[1]光纤通信技术和网络国家重点实验室,湖北武汉430074 [2]武汉邮电科学研究院,湖北武汉430074

出　　处：《光通信研究》2012年第6期6-9,共4页Study on Optical Communications

摘　　要：文章首先概述了产生超宽通道的行业背景,接着介绍了产生超宽通道的两种主要方式;分别阐述了OFDM(正交频分复用)调制方式和Nyquist(奈奎斯特)滤波方式的基本原理和产生途径,分析了这两种方式的优劣特点并进行了比较;最后综述了两种方式的研究现状及今后展望。This paper first reviews the industrial background of realizing ultra-wideband transmission and introduces two main approaches for its realization： OFDM modulation and Nyquist filtering and their fundamental principles. It then analyzes and compares their advantages and disadvantages. Finally, it summarizes the present conditions of their researches and looks for- ward to their prospects.

关 键 词：正交频分复用调制 奈奎斯特滤波 超宽通道 

分 类 号：TN914[电子电信—通信与信息系统]