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Add files for FIR and IIR filter - not tested

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Imants Pulkstenis
2020-06-09 22:28:53 +03:00
parent 01e4a4b6d3
commit 682207dfa1
66 changed files with 13930 additions and 43 deletions
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ld3/ld3.m
+4 -4
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@@ -41,10 +41,10 @@ ylabel('Magnitude (dB)')
legend('Response FIR_1','Response FIR_2','f_1','f_2', '-20dB target', 'Location','East')
title('Magnitude response')
%% 3.IIR bandpass filtrs
[b,a] = iirpeak(Wn1,2*(Wn2-Wn1),-22); %Wo must satisfy 0.0 < Wo < 1.0, with 1.0 corresponding to pi radians/sample
[h3,w3] = freqz(b,a);
[b,a] = iirpeak(Wn2,2*(Wn2-Wn1),-19);
[h4,w4] = freqz(b,a);
[bb1,aa1] = iirpeak(Wn1,2*(Wn2-Wn1),-22); %Wo must satisfy 0.0 < Wo < 1.0, with 1.0 corresponding to pi radians/sample
[h3,w3] = freqz(bb1,aa1);
[bb2,aa2] = iirpeak(Wn2,2*(Wn2-Wn1),-19);
[h4,w4] = freqz(bb2,aa2);
figure (2)
plot (w3/pi,db(h3), ...
w4/pi,db(h4),...