一种基于时钟提取的曼彻斯特编解码设计  

A design of manchester codec based on clock extraction

作　　者：宋一丁 王振华 田巧红 马志敏 SONG Yi ding;WANG Zhen hua;TIAN Qiao hong;MA Zhi min(Software Company of Xuji Electric Co.,Ltd.,Xuchang 461000,China;Henan Mobile Xuchang Branch,Xuchang 461000,China)

机构地区：[1]许继电气股份有限公司软件公司,河南许昌461000 [2]河南移动许昌分公司,河南许昌461000

出　　处：《电子设计工程》2020年第8期123-126,131,共5页Electronic Design Engineering

基　　金：国家电网公司总部科技项目资助(5222LK17000Z)。

摘　　要：曼彻斯特码是一种性能优良的数字基带信号传输码,可以消除直流成分,具有时钟恢复和抗干扰性强的特点,本文通过对传统的解码方案的分析,提出了一种基于时钟提取方案的曼彻斯特码的解码器设计,消除了时钟系统的相位累积误差,结构灵活,性能稳定,同时采用XILINX公司的ISim软件对整个编解码设计进行了仿真,验证了设计方法的可行性和正确性。Manchester code is a kind of digital baseband signal transmission code with excellent performance,which can eliminate DC composition and has the characteristics of strong clock recovery and antiinterference power. In this paper,through the analysis of the traditional decoding scheme,a Manchester code decoder based on clock extraction scheme is proposed to eliminate the phase accumulation error of the clock system. The structure is flexible and the performance is stable. At the same time,the whole emus design is simulated with the ISIM software of XILINX Company,and the feasibility and correctness of the design method are verified.

关 键 词：曼彻斯特码 时钟提取 FPGA ISim 

分 类 号：TN919[电子电信—通信与信息系统]