?? p207.m
字號:
%program p207
Wp = 40/500; Ws = 150/500;
[n,Wn] = buttord(Wp,Ws,3,60)
[b,a] = butter(n,Wn);
freqz(b,a,512,1000); title('n=5 Butterworth Lowpass Filter')?? 快捷鍵說明
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