freqtr.asv

来自「FIR filter design with unseperable windo」· ASV 代码 · 共 11 行

b = firpm(8,[0 0.1 0.3 0.41]*2,[1 1 0 0]);
[H,w] = freqz(b,1,64,'whole');
colormap(jet(64))
plot(w/pi-1,fftshift(abs(H)))


h = ftrans2(b);
*freqz2(h)