对光纤通信系统中的电域色散补偿(EDC)技术进行了深入研究,利用Optisystem8.0和Matlab7.1联合搭建仿真系统平台,分析了基于最小均方(LMS)算法的电域色散补偿性能。仿真结果表明,滤波器参数(收敛因子,抽头数)、系统传输特性以及调制格式对最小均方算法的收敛速度和稳态误差都有较大的影响,要求合理选择滤波器参数和调制格式,使电域色散补偿达到最优性能。 The EDC technology in optical fiber communication system is studied deeply. The simulation system platform is established by Optisystem8.0 and Matlab7.1, and the EDA performance based on least mean square (LMS) algorithm is analyzed. The simulation results show that the filter parameters (the convergence factor, the number of taps), the system transmission characteristics and the modulation format have a great influence on the convergence rate and steady-state error of the Least Mean Square algorithm, which requires that the filter parameters and the modulation format should be selected reasonably, Dispatch EDI to achieve the best performance.