diff --git a/src/SAR3Q19.m b/src/SAR3Q19.m new file mode 100644 index 0000000000000000000000000000000000000000..eb223581b19c656d075a362391cf9f0d85fd3f0e --- /dev/null +++ b/src/SAR3Q19.m @@ -0,0 +1,25 @@ +clear; clc; + +Fe = 44100; +K = 10; +N = 10000; + +% Def de h_r(k) +hr = ones(1, K) / K; + +% FFT de h_r +H = fft(hr, N); +H_mag = abs(H(1:N/2)) / max(abs(H)); % On normalise +H_db = 20 * log10(H_mag + eps); % dB + +% Axe des fréquences en Hz +f = linspace(0, Fe/2, N/2); + +% Affichage +figure; +plot(f, H_db, 'b', 'LineWidth', 1.5); +xlabel('Fréquence (Hz)'); +ylabel('|H_r(f)| en dB'); +title('Réponse en fréquence du filtre de retour h_r(k)'); +grid on; +ylim([-60 5]);