sanjiaochuang.m

一个ＤＣＴ函数的程序

n=31;
window=triang(n);
[h,w]=freqz(window,1);
subplot(1,2,1)
stem(window);
subplot(1,2,2);
plot(w/pi,20*log(abs(h)/abs(h(1))));