摘要
光纤数字通信系统中采用线路编码是一种趋势,可以采用的线路编码很多,比较常用的线路码型就是mBnB码型。通过介绍5B6B编码原理,分析比较了两种编码方案,讨论了两种编码的性能。对改进的一种编码方案实现了基于matlab的5B6B编码,有效降低了误码扩散系数,实现了最大相同码元连码数少、定时信息丰富、尽量少的直流分量。
It is a trend that optical fiber digital communication system uses the line coding.A lot of line coding can be used,and mBnB coding type is used frequently in line coding types.This paper first introduces the theory of 5B6B coding,analyzes and compares of the two encoding schemes,then discusses the performance of the two encoded.Its improved coding scheme realizes the 5B6B coding based on matlab.It effectively reduces the error diffusion coefficient and makes the result of less number of the largest element of the same code,rich timing information,less DC component as far as possible.
出处
《微处理机》
2013年第2期28-30,34,共4页
Microprocessors
