ex0709.m

来自「数字信号处理（机械工业出版社）的源码」· M 代码 · 共 8 行

% Chapter 7: Example 7.9 filter design
%
n = 10; Rp = 0.5;
Wn = [100 200]/500;
[b,a] = cheby1(n,Rp,Wn);
freqz(b,a,128,1000)
figure
[y,t] = impz(b,a,101); stem(t,y)