ms5r5.m

《数字信号处理实验(MATLAB版)》这

N=10;n=0:N-1;
x=exp(-0.5*n).*ones(1,N);
h=[0,0,0,3,0.5,0.2,0.7,-0.8];
[y,ny]=convnew(x,n,h,n); 
subplot(2,2,1);stem(n,x,'filled','k');            
title('f1(n)');
subplot(2,2,2);stem(h,'filled','k');
title('f2(n)');
subplot(2,1,2);stem(ny,y,'filled','k');
title('y(n)');