make it plot complex plane
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@ -34,4 +34,12 @@ freqz(b, a, 1024, samplingFreq);
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title('Frequency Response of FIR Filter');
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grid on;
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% Plot impulse response
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figure;
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impz(b, a);
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title('Impulse Response of FIR Filter');
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xlabel('Samples (n)');
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ylabel('Amplitude');
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grid on;
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end
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6
main.m
6
main.m
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@ -23,7 +23,11 @@ plotRawSignal(X, Fs);
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[f, power] = frequencySpectrum(X, Fs, 1); % set 1 to plot
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% ======== Apply a bandpass filter ==============
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[filteredSignal, Z, P] = iirFilter(10, [5 20], X, Fs, 1);
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% [filteredSignal, Z, P] = iirFilter(10, [5 20], X, Fs, 1);
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% ======== Apply FirFilter ===============
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filteredSignal = firFilter(30, [5 20], X, 200); % for a 30th-order bandpass FIR filter
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plotFilteredSignal(filteredSignal, Fs);
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end
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