From bab8a442c634e2d1b9a1f6ef59293f1c93455ca7 Mon Sep 17 00:00:00 2001 From: PERBEN Anatole <anatole.perben@imt-atlantique.net> Date: Wed, 28 May 2025 23:28:41 +0000 Subject: [PATCH] Upload New File --- src/wav/question_3_3.m | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 src/wav/question_3_3.m diff --git a/src/wav/question_3_3.m b/src/wav/question_3_3.m new file mode 100644 index 0000000..60291c6 --- /dev/null +++ b/src/wav/question_3_3.m @@ -0,0 +1,23 @@ +% Charger les données +load("signal_excitation.mat"); % xe1, xe2, fe sont chargés + +% Autocorrélation (centrée) +rxe1 = xcorr(xe1, 'biased'); +rxe2 = xcorr(xe2, 'biased'); + +% Axe des lags +lags1 = -length(xe1)+1:length(xe1)-1; +lags2 = -length(xe2)+1:length(xe2)-1; + +% Affichage +subplot(2,1,1); +plot(lags1, rxe1); +title('Autocorrélation de xe1'); +xlabel('Décalage'); +ylabel('Amplitude'); + +subplot(2,1,2); +plot(lags2, rxe2); +title('Autocorrélation de xe2'); +xlabel('Décalage'); +ylabel('Amplitude'); \ No newline at end of file -- GitLab