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Félix MARQUET
2026-01-07 14:12:07 +01:00
committed by Félix MARQUET
parent 0c0223b230
commit bdd0ee0075
17 changed files with 347 additions and 25 deletions
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0
.obsidian/plugins/obsidian-git/obsidian_askpass.sh vendored Normal file → Executable file
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61
.obsidian/workspace.json vendored
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@@ -4,16 +4,16 @@
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"file": "ISEN/English/CIPA4/24 oct 2025.md",
"file": "ISEN/Réunion/CIPA 4/Réunion 8 janv 2026.md",
"mode": "source",
"source": false,
"backlinks": true,
@@ -28,19 +28,31 @@
}
},
"icon": "lucide-file",
"title": "24 oct 2025"
"title": "Réunion 8 janv 2026"
}
},
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"id": "8beea5ef99c3c6ed",
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"file": "ISEN/Réseau/CIPA4/TP/Module 5/M05 TP 01 - Les commandes.pdf"
"file": "conflict-files-obsidian-git.md",
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"icon": "lucide-file-text",
"title": "M05 TP 01 - Les commandes"
"icon": "lucide-file",
"title": "conflict-files-obsidian-git"
}
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],
@@ -217,23 +229,25 @@
"obsidian-git:Open Git source control": false
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},
"active": "8beea5ef99c3c6ed",
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"lastOpenFiles": [
"ISEN/Traitement du signal/CIPA4/TP/TP4/TP4cipa_MARQUET.pdf",
"ISEN/Traitement du signal/CIPA4/TP/TP4/~WRL3604.tmp",
"ISEN/Traitement du signal/CIPA4/TP/TP4/~WRD3600.tmp",
"ISEN/Traitement du signal/CIPA4/TP/TP4/~WRL2177.tmp",
"ISEN/Traitement du signal/CIPA4/TP/TP4/~WRD2173.tmp",
"ISEN/Traitement du signal/CIPA4/TP/TP4/~WRL0125.tmp",
"ISEN/Traitement du signal/CIPA4/TP/TP4/~WRD0121.tmp",
"ISEN/Traitement du signal/CIPA4/TP/TP4/~WRL3834.tmp",
"ISEN/Traitement du signal/CIPA4/TP/TP4/~WRD3830.tmp",
"ISEN/Traitement du signal/CIPA4/TP/TP4/~WRL2846.tmp",
"ISEN/Traitement du signal/CIPA4/TP/TP4/~WRD2842.tmp",
"ISEN/Réunion/CIPA 4/Réunion 8 janv 2026.md",
"conflict-files-obsidian-git.md",
"ISEN/Traitement du signal/CIPA4/TP/TP5/~$5_Marquet.doc",
"ISEN/Traitement du signal/CIPA4/TP/TP5/TP5_Marquet.doc",
"ISEN/Traitement du signal/CIPA4/TP/TP5/TP5remplir.doc",
"ISEN/Traitement du signal/CIPA4/TP/TP5/Q2noiz810KA.wav",
"ISEN/Traitement du signal/CIPA4/TP/TP5/Q2.wav",
"ISEN/Traitement du signal/CIPA4/TP/TP5/holiday_offer.wav",
"ISEN/Traitement du signal/CIPA4/TP/TP5/claves.wav",
"ISEN/Traitement du signal/CIPA4/TP/TP5",
"ISEN/Traitement du signal/CIPA4/TP/dossier sans titre",
"ISEN/Réunion/CIPA 4/Untitled.md",
"ISEN/Traitement du signal/CIPA4/TP/TP3/E71marquet.wav",
"ISEN/English/CIPA4/24 oct 2025.md",
"ISEN/Réseau/CIPA4/TP/TP M02 Conversion.md",
"Protocol Data Units (PDU).md",
"ISEN/English/CIPA4/Elevator pitch.md",
"ISEN/English/CIPA4/24 oct 2025.md",
"ISEN/English/CIPA4/29 sept 2025.md",
"ISEN/BDD/CIPA4/BDD Cours 1.md",
"ISEN/ELA/TP/Compte rendu TP Amplificateur Opérationnel et Contre-Réaction.md",
@@ -252,9 +266,6 @@
"ISEN/FHS/A1/Démocratie/Démocracie cours 7.md",
"ISEN/BDD/CIPA4/modelisation-cas-immo.md",
"ISEN/BDD/CIPA4/Cas modélisation alternatifs.md",
"ISEN/BDD/CIPA4/BDD Cours 2.md",
"ISEN/FHS/CIPA4/Anthropologie de l'entreprise/Mythe Horoquartz.md",
"ISEN/FHS/CIPA4/Anthropologie de l'entreprise/Anthropologie de l'entreprise Cours 1.md",
"Pasted image 20251009192656.png",
"src/Pasted image 20240130111505.png",
"src/Pasted image 20240123120819.png",

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ISEN/Réunion/CIPA 4/Réunion 8 janv 2026.md Normal file
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## En vrac
Nouveau responsable de promo: Brahim JAWAD
Cours de WEB en distanciel MAIS depuis l'ISEN
Les DP a distances on sait pas si a la maison ou pas ?
## DP à la carte
Bloc 1 et 2 en présentiel
Bloc 3 STM32 et prototipage d'espace en présentiel
Planing spécial d'émargement pour les DP

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ISEN/Traitement du signal/CIPA4/TP/TP5/TP5Experience1.m Normal file
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%% Experience 1 : Concatenate three audio files into one
clc;
clear;
close all;
%% Load audio data (Q2, holiday_offer, CLAVES)
[y1, Fs1] = audioread('Q2.wav');
[y2, Fs2] = audioread('holiday_offer.wav');
[y3, Fs3] = audioread('CLAVES.wav');
% Play sound (debug)
%sound(y1, Fs1); % Play the first audio file
%pause(length(y1)/Fs1); % Wait until the first audio finishes
%sound(y2, Fs2); % Play the second audio file
%pause(length(y2)/Fs2); % Wait until the second audio finishes
%sound(y3, Fs3); % Play the third audio file
%pause(length(y3)/Fs3); % Wait until the third audio finishes
%% Force all signals to mono and to the same sampling rate 44100 Hz (CD quality)
Fs_target = 44100; % desired sampling frequency
% Convert to mono
if size(y1,2) > 1, y1 = mean(y1,2); end
if size(y2,2) > 1, y2 = mean(y2,2); end
if size(y3,2) > 1, y3 = mean(y3,2); end
% If needed, resample to 44100 Hz
if Fs1 ~= Fs_target
y1 = resample(y1, Fs_target, Fs1);
end
if Fs2 ~= Fs_target
y2 = resample(y2, Fs_target, Fs2);
end
if Fs3 ~= Fs_target
y3 = resample(y3, Fs_target, Fs3);
end
%% Concatenate the three sounds
y_all = [y1; y2; y3];
%% Save combined sound
audiowrite('Q1marquetfelix.wav', y_all, Fs_target);
%% Play the combined sound
sound(y_all, Fs_target);

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ISEN/Traitement du signal/CIPA4/TP/TP5/TP5Experience2.m Normal file
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%% Experience 2 : Remove high-frequency jamming from Q2noiz810KA
clc;
clear;
close all;
%% 1) Load audio file with audioread
[x, fs] = audioread('Q2noiz810KA.wav');
% Convert to mono if stereo
if size(x,2) > 1
x = mean(x,2);
end
N = length(x);
%% 2) Listen to the noisy signal
soundsc(x, fs); % Not working on my computer
%% 3) Visualize the spectrum of x and locate the jamming
X = fft(x);
magX = abs(X);
halfN = floor(N/2) + 1;
magX_half = magX(1:halfN);
f = (0:halfN-1) * (fs/N); % frequency axis in Hz
figure('Name','Spectrum of x (noisy signal)');
plot(f/1000, magX_half, 'g'); % in kHz
xlabel('Frequency (kHz)');
ylabel('|X(f)|');
title('Single-sided amplitude spectrum of x');
grid on;
xlim([0 fs/2000]);
%% 4) Find the jamming frequency and filter
fjam = 4000;
ordre = 6;
[b, a] = butter(ordre, fjam/(fs/2), 'low');
y = filter(b, a, x);
%% 5) Listen to the filtered signal
soundsc(y, fs); % Not working on my computer
%audiowrite('test.wav', y, fs); % To avoid using soundsc
%% 6) Plot spectrum of y
Y = fft(y);
magY = abs(Y);
magY_half = magY(1:halfN);
figure('Name','Spectrum of y (filtered signal)');
plot(f/1000, magY_half, 'g'); % in kHz
xlabel('Frequency (kHz)');
ylabel('|Y(f)|');
title('Single-sided amplitude spectrum of filtered signal y');
grid on;
xlim([0 fs/2000]);

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ISEN/Traitement du signal/CIPA4/TP/TP5/TP5Experience3.m Normal file
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%% Experiment 3 : Root-raised cosine (RRC) filter (subject 1)
clc;
clear;
close all;
%% Parameters
T = 2e-3; % Symbol period (2 ms)
al = 0.1; % Roll-off factor alpha (subject 1)
Te = 0.13 * T; % Sampling period (s)
Fs = 1 / Te; % Sampling frequency (Hz)
t = -10*T : Te : 10*T; % Time vector from -10T to +10T
%% Impulse response h(t) using the given formula
num = sin(pi*t/T * (1 - al)) + (4*al*t/T) .* cos(pi*t/T * (1 + al));
den = (pi*t/T) .* (1 - (4*al*t/T).^2);
h = (al / sqrt(T)) * (num ./ den);
% Handle singularity at t = 0 using theoretical limit
h(t == 0) = (1/sqrt(T)) * (1 - al + 4*al/pi);
%% 1) Time-domain visualization of h(t)
figure('Name','Impulse response h(t)');
plot(t, h, 'g', 'LineWidth', 1.2);
grid on;
xlabel('Time (s)');
ylabel('h(t)');
title('Impulse response h(t) for root-raised cosine filter');
% You can zoom on [-0.01 0.01] to better see the main lobe if needed
%% 2) Amplitude spectrum of h(t)
NFFT = 2^12; % FFT length
H_freq = abs(fftshift(fft(h, NFFT))); % Magnitude spectrum (centered)
f = linspace(-Fs/2, Fs/2, NFFT); % Frequency axis (Hz)
figure('Name','Amplitude spectrum of h(t)');
plot(f, H_freq / max(H_freq), 'g', 'LineWidth', 1.2);
grid on;
xlabel('Frequency (Hz)');
ylabel('Normalized magnitude');
title('Normalized amplitude spectrum of h(t)');
%% Theoretical maximum frequency of the RRC filter
f_max_theoretical = (1 + al) / (2 * T); % Hz
fprintf('Theoretical maximum frequency : %.2f Hz (%.3f kHz)\n', ...
f_max_theoretical, f_max_theoretical/1000);

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ISEN/Traitement du signal/CIPA4/TP/TP5/TP5Experience3_4.m Normal file
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%% Experiment 3 : Root-raised cosine (RRC) filter (subject 1)
clc;
clear;
close all;
%% Parameters
T = 2e-3; % Symbol period (2 ms)
al = 0.1; % Roll-off factor alpha (subject 1)
Te = 1.4e-3; % Sampling period (s) (near 1.6ms)
Fs = 1 / Te; % Sampling frequency (Hz)
t = -10*T : Te : 10*T; % Time vector from -10T to +10T
%% Impulse response h(t) using the given formula
num = sin(pi*t/T * (1 - al)) + (4*al*t/T) .* cos(pi*t/T * (1 + al));
den = (pi*t/T) .* (1 - (4*al*t/T).^2);
h = (al / sqrt(T)) * (num ./ den);
% Handle singularity at t = 0 using theoretical limit
h(t == 0) = (1/sqrt(T)) * (1 - al + 4*al/pi);
%% 1) Time-domain visualization of h(t)
figure('Name','Impulse response h(t)');
plot(t, h, 'g', 'LineWidth', 1.2);
grid on;
xlabel('Time (s)');
ylabel('h(t)');
title('Impulse response h(t) for root-raised cosine filter');
%% 2) Amplitude spectrum of h(t)
NFFT = 2^12; % FFT length
H_freq = abs(fftshift(fft(h, NFFT))); % Magnitude spectrum (centered)
f = linspace(-Fs/2, Fs/2, NFFT); % Frequency axis (Hz)
figure('Name','Amplitude spectrum of h(t)');
plot(f, H_freq / max(H_freq), 'g', 'LineWidth', 1.2);
grid on;
xlabel('Frequency (Hz)');
ylabel('Normalized magnitude');
title('Normalized amplitude spectrum of h(t)');
%% Theoretical maximum frequency of the RRC filter
f_max_theoretical = (1 + al) / (2 * T); % Hz
fprintf('Theoretical maximum frequency : %.2f Hz (%.3f kHz)\n', ...
f_max_theoretical, f_max_theoretical/1000);

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ISEN/Traitement du signal/CIPA4/TP/TP5/TP5Experience4.m Normal file
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%% Experiment 4 : Sampling and filtering (subject 1)
clc;
clear;
close all;
%% 1) Sampling parameters
Fe = 1000; % Sampling frequency (Hz) for subject 1
Te = 1 / Fe; % Sampling period (s)
t = (0:6400) * Te; % Observation window (0 to 6400 samples -> 6.4 s)
%% 2) Generate x(t)
% x(t) = sin(2000 t^2) + sin(2000 t)^2/100 + sin(2000 t)/100
% + cos(124000 t + pi/2) + sin(124000 t)
x = sin(2000*t.^2) ...
+ (sin(2000*t).^2)/100 ...
+ sin(2000*t)/100 ...
+ cos(124000*t + pi/2) ...
+ sin(124000*t);
%% 3) Amplitude spectrum of x(t) (0..Fe, axis in kHz)
N = length(x);
Xfft = abs(fft(x)) / N; % linear magnitude spectrum
f_Hz = (0:N-1) * (Fe/N); % frequency axis from 0 to Fe (Hz)
f_kHz = f_Hz / 1000; % in kHz
figure('Name','Amplitude spectrum of x(t)');
plot(f_kHz, Xfft, 'g');
title('Amplitude spectrum of x(t) (0 to Fe)');
xlabel('Frequency (kHz)');
ylabel('Magnitude');
xlim([0 Fe/1000]); % 0 .. Fe in kHz
grid on;
%% 4) 8th-order Butterworth low-pass filter (cutoff adapted)
% In the original statement Fe = 5 kHz with Fc = 800 Hz.
% Here Fe is 5 times smaller, so we scale the cutoff: Fc = 800/5 = 160 Hz.
Fc = 160; % cutoff frequency (Hz)
order = 8; % filter order
Wn = Fc / (Fe/2); % normalized cutoff (0..1)
[b, a] = butter(order, Wn, 'low'); % Butterworth low-pass filter
%% 5) Filter the signal to obtain y(t)
y = filter(b, a, x);
%% 6) Amplitude spectrum of filtered signal y(t)
Yfft = abs(fft(y)) / N;
figure('Name','Amplitude spectrum of filtered signal y(t)');
plot(f_kHz, Yfft, 'g', 'LineWidth', 1.2);
title(['Amplitude spectrum of filtered y(t) (cutoff ', num2str(Fc), ' Hz)']);
xlabel('Frequency (kHz)');
ylabel('Magnitude');
xlim([0 Fe/1000]);
grid on;

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conflict-files-obsidian-git.md Normal file
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# Conflicts
Please resolve them and commit them using the commands `Git: Commit all changes` followed by `Git: Push`
(This file will automatically be deleted before commit)
[[#Additional Instructions]] available below file list
- Not a file: .obsidian/workspace.json
# Additional Instructions
I strongly recommend to use "Source mode" for viewing the conflicted files. For simple conflicts, in each file listed above replace every occurrence of the following text blocks with the desired text.
```diff
<<<<<<< HEAD
File changes in local repository
=======
File changes in remote repository
>>>>>>> origin/main
```