基于LMS的自适应回声抵消-f1.m

clear all
clc               
t=0:1/1000:10-1/1000;
s=sin（2*pi*t）;
snr=10;
s_power=var（s）;              %var函数: 返回方差值
linear_snr=10^（snr/10）;
factor=sqrt（s_power/linear_snr）;
noise=randn（1length（s））*factor;
x=s+noise;                   %由SNR计算随机噪声
x1=noise;                    %噪声源输入
x2=noise;
w1=0;                       %权系数初值
w2=0; 
e=zeros（1length（x））;
y=0;
u=0.005;