zixiangguanhu.m

用MATLAB实现的自相关的算法源程序

N=500;p1=1;p2=0.1;f=1/8;Mlag=60;
u=randn(1,N);u2=u*sqrt(p2);n=[0:N-1];
s=sin(2*pi*f*n);
subplot(3,1,1);stem(n,s);
x1=u(1:N)+s;
rx1=xcorr(x1,Mlag,'biased');
subplot(3,1,2);plot(rx1);
u2=u*sqrt(p2);x2=u2(1:N)+s;
rx2=xcorr(x2,Mlag,'biased')
subplot(3,1,3),plot(rx2);