基于串扰与干扰源相位同步的减小串扰研究

摘要

A method that can reduce crosstalk by using the inverted signal at the middle of aggressor line is presented in this paper.It is based on the synchronization feature of phase changing between crosstalk and interference source signal.In a bus system with n lines,phase inversions are set at the middle of the odd（or even）number line,then the amplitudes of far-end crosstalk,which come from the front and the back half coupling length,are numerically equal and the phases are opposite.The far-end crosstalk on transmission line would be set-off when these two parts of crosstalk signals are added automatically.Simulation results show that crosstalk can be eliminated mostly by this method.%基于串扰信号相位改变与干扰源信号相位改变具有同步的特性,提出了一种在干扰线中点利用信号反相来减小串扰的方法。n条总线系统中,在编号为奇数（或者偶数）的传输线中点插入反相器,使每条传输线在前二分之一耦合长度和后二分之一耦合长度上获得的远端串扰信号幅度相等、相位相反,前后两部分耦合长度所产生的串扰信号经过自动叠加后,传输线上的远端串扰就会被抵消。仿真结果表明：所提出的方法能够明显抵消串扰。