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TP3_2 now closer to finished, still not within bounds

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This commit is contained in:
rainydaysavings 2020-11-26 16:04:32 +00:00
parent 19a477eddb
commit bf694db39f
1 changed files with 22 additions and 10 deletions
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32
TP3a/DiogoEliseu_TP3_2.m
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@ -10,7 +10,22 @@ cello = importdata('cello.mat');
EEG = importdata('EEG.mat'); EEG = importdata('EEG.mat');
EEG = EEG'; EEG = EEG';
N = 256; % sinal sintetico
Ls = length(sintetico);
Ts = 0.125;
Fs = 1/Ts;
Fs_vector = (0:Ls-1)/Ls * Fs;
% sinal cello
Lc = length(cello.x);
Tc = cello.dt;
Fc = 1/Tc;
Fc_vector = (0:Lc-1)/Lc * Fc;
% sinal EEG
Le = length(EEG);
Fe = 100;
Fe_vector = (1:Le-1)/Le * Fe;
figure(1) figure(1)
@ -19,9 +34,8 @@ plot(sintetico);
title('sinal sintetico'); title('sinal sintetico');
subplot(2,1,2) subplot(2,1,2)
DFT_Xa = fft(sintetico, N+1); DFT_synth = fft(sintetico, Ls);
DFT_Xa = DFT_Xa(1 : (N+1)/2); plot(Fs_vector, abs(DFT_synth))
plot(X((N+1)/2, 0, 1),abs(DFT_Xa))
xlabel('\omega/\pi'), ylabel('|X(\omega)|'), title('DFT sintetico em [0, \pi]') xlabel('\omega/\pi'), ylabel('|X(\omega)|'), title('DFT sintetico em [0, \pi]')
figure(2) figure(2)
@ -31,9 +45,8 @@ plot(cello.x);
title('sinal cello'); title('sinal cello');
subplot(2,1,2) subplot(2,1,2)
DFT_cello = fft(cello.x, N+1); DFT_cello = fft(cello.x, Lc);
DFT_cello = DFT_cello(1 : (N+1)/2); plot(Fc_vector, abs(DFT_cello))
plot(X((N+1)/2, 0, 1),abs(DFT_cello))
xlabel('\omega/\pi'), ylabel('|X(\omega)|'), title('DFT cello em [0, \pi]') xlabel('\omega/\pi'), ylabel('|X(\omega)|'), title('DFT cello em [0, \pi]')
figure(3) figure(3)
@ -43,9 +56,8 @@ plot(EEG);
title('sinal EEG'); title('sinal EEG');
subplot(2,1,2) subplot(2,1,2)
DFT_EEG = fft(EEG, N+1); DFT_EEG = fft(EEG, Le-1);
DFT_EEG = DFT_EEG(1 : (N+1)/2); plot(Fe_vector, abs(DFT_EEG))
plot(X((N+1)/2, 0, 1),abs(DFT_EEG))
xlabel('\omega/\pi'), ylabel('|X(\omega)|'), title('DFT EEG em [0, \pi]') xlabel('\omega/\pi'), ylabel('|X(\omega)|'), title('DFT EEG em [0, \pi]')