lms.m

自适应滤波 回波抵消器中自适应滤波在matlab下的仿真

function [w pe_n pd_n d_est e_n] = lms(u,w,d,pe_n,pd_n,miu,alpha)

d_est = w * u';
e_n = d - d_est;
w = w + miu * u * e_n;

pe_n = (1-alpha)*pe_n + alpha * abs(e_n);
pd_n = (1-alpha)*pd_n + alpha * abs(d);