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    In MATLAB, you can implement critical modulation (often referring to amplitude modulation at the critical modulation index of 1) using built-in functions like ammod or by manually generating the modulated waveform. This ensures the carrier amplitude equals the message amplitude, avoiding over-modulation.

    Steps to Implement

    1. Define Parameters Set the sampling frequency, carrier frequency, message frequency, and modulation index (critical value = 1).

    2. Generate Message and Carrier Signals Create a sinusoidal message signal and a carrier wave.

    3. Apply Amplitude Modulation Use MATLAB’s ammod function or manually compute the AM signal using the formula: [ y(t) = (1 + m \cdot x(t)) \cdot \cos(2\pi f_c t) ] where ( m = 1 ) for critical modulation.

    4. Plot and Analyze Visualize both time-domain and frequency-domain representations to verify correct modulation.

    Example MATLAB Code

    % Parameters
    fs = 1000; % Sampling frequency (Hz)
    fc = 100; % Carrier frequency (Hz)
    fm = 10; % Message frequency (Hz)
    m_index = 1; % Critical modulation index
    t = 0:1/fs:1; % Time vector

    % Message signal
    msg = cos(2*pi*fm*t);

    % AM using built-in function
    y_builtin = ammod(msg, fc, fs, 0, 1); % Carrier amplitude = 1

    % AM using manual formula
    carrier = cos(2*pi*fc*t);
    y_manual = (1 + m_index * msg) .* carrier;

    % Plot results
    figure;
    subplot(3,1,1); plot(t, msg); title('Message Signal');
    subplot(3,1,2); plot(t, carrier); title('Carrier Signal');
    subplot(3,1,3); plot(t, y_manual); title('AM Signal (Critical Modulation)');
    نقل کر لیا گیا!
    How to generate an AM signal in MATLAB?
    To generate an AM signal in MATLAB, combine the carrier amplitude with the message signal or modulated wave. This alters the instantaneous amplitude of the carrier according to the modulating signal.
    wointec.com
    MathWorks
    https://www.mathworks.com/.../fileexchange/44797-matlab-code-for-a…
    MATLAB code for Amplitude Modulation (AM) - MathWorks
  1. MathWorks
    https://www.mathworks.com › help › comm › ref › ammod.htmlاس نتیجے کا ترجمہ کریں

    ammod - Amplitude modulation - MATLAB - MathWorks

    This MATLAB function returns an amplitude modulated (AM) signal y, given the input message signal x, where the carrier signal has frequency Fc.

    mathworks.com سے صرف نتائج دیکھیں
  2. Signal Processing
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  3. Github
    https://github.com › ghyannn › AM-Modulation-MATLABاس نتیجے کا ترجمہ کریں

    ghyannn/AM-Modulation-MATLAB - GitHub

    This project contains a MATLAB simulation of Amplitude Modulation (AM) using the Double Sideband Full Carrier (DSBFC) technique. It includes both modulation and demodulation processes.

  4. RF Wireless World
    https://www.rfwireless-world.com › source-code › am-fm...اس نتیجے کا ترجمہ کریں

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  5. MathWorks
    https://www.mathworks.com › ... › fileexchangeاس نتیجے کا ترجمہ کریں

    MATLAB code for Amplitude Modulation (AM) - MathWorks

    6 جون، 2018 · Download and share free MATLAB code, including functions, models, apps, support packages and toolboxes

  6. GeeksForGeeks
    https://www.geeksforgeeks.org › software-engineering › ...اس نتیجے کا ترجمہ کریں

    Amplitude Modulation using MATLAB - GeeksforGeeks

    29 مئی، 2021 · In amplitude modulation, the amplitude that is the signal quality of the carrier wave differs with respect to that of the message signal being transmitted. Amplitude modulation in MATLAB can …

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  8. electroSome
    https://electrosome.com › am-generation-matlabاس نتیجے کا ترجمہ کریں

    AM Generation using Matlab - electroSome

    14 اکتوبر، 2013 · Amplitude modulation AM is a one of the conventional modulation technique to transmit signals using a carrier wave. AM can be easily generated using Matlab.

  9. Studocu
    https://www.studocu.com › in › document › annasaheb-chu...اس نتیجے کا ترجمہ کریں

    Experiment No. 1: Simulation of AM Modulation in MATLAB

    Software Tool: - MATLAB simulation software package installed on windows machine. Problem statement- Write a Matlab code to demonstrate the AM modulated output for following cases: 1. …

  10. Scribd
    https://www.scribd.com › document › MATLAB-Introduction-Acاس نتیجے کا ترجمہ کریں

    MATLAB Amplitude Modulation Tutorial

    The document contains MATLAB code for simulating various modulation and demodulation techniques including: 1. Amplitude modulation (AM) is simulated by modulating a message signal with a carrier …

  11. Github
    https://github.com › ... › Analog-Modulation-Techniquesاس نتیجے کا ترجمہ کریں

    Analog Modulation Techniques (AM & FM) written in MATLAB ... - GitHub

    Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. In amplitude modulation, the …

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