数字信号处理作业.doc

A=sqrt(2);n=(-50:50);w=pi/16;p=0.1;N=101;u=randn(1,N);a=sqrt(p);u=u*a;x=A*sin(w*n)+u;subplot(2,1,1);plot(n,x);Mlag=60;rx=xcorr(x,Mlag,biased);subplot(2,1,2);plot(rx);