ex07015.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 7.15 filter design
%
Wp = [60 200]/500; Ws = [50 250]/500;
Rp = 3; Rs = 40;
[n,Wn] = cheb2ord(Wp,Ws,Rp,Rs)
[b,a] = cheby2(n,Rs,Wn);
freqz(b,a,512,1000); title('n=7 Chebyshev Type II Bandpass Filter')