exp8_14.m

来自「是Digital signal processing--using Matlab」· M 代码 · 共 7 行

wp=0.2*pi;ws=0.3*pi;rp=7;as=16;
[b,a]=afd_butt(wp,ws,rp,as)
[C,B,A]=sdir2cas(b,a)
%Caculation of the frequency response
[db,mag,pha,w]=freqs_m(b,a,0.5*pi)
%Caculation of the impulse response
[ha,x,t]=impulse(b,a)