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Snippet - Basic Matlab Filter
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| %% Filter Design | |
| % Designs a second order filter using a butterworth design guidelines | |
| [b a] = butter(2,0.2,'high'); | |
| % Plot the frequency response (normalized frequency) | |
| figure(3) | |
| H = freqz(b,a,floor(num_bins/2)); | |
| plot(0:1/(num_bins/2 -1):1, abs(H), 'r'); | |
| hold on | |
| grid on | |
| plot(0:1/(num_bins/2 -1):1,X_magsNorm(1:num_bins/2),'g') |
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