恒模盲均衡算法收敛性能改进分析

Analysis of Convergence Performance Modification of Constant Modulus Algorithm

基于恒模算法原理详细分析固定步长和误差函数的非对称性对恒模算法收敛性能的影响,重点研究如何采用变步长和构建对称误差函数提高算法的收敛性能,并对几种典型的改进算法进行仿真,验证其有效性。

Based on the principle of constant modulus blind equalization algorithm,this paper analyzes detailedly the influences of fixed step size and unsymmetrical error function on the convergence performance of constant modulus algorithm.How to adopt variable step and design symmetrical error function to modify the convergence performance are emphatically studied.Computer simulations are carried out on several modified constant modulus algorithms,which show that these modifiud constant modulus algorithms have excellent performances.