Principles and Fundamental Methods of Digital Signal Modulation and Demodulation

MATLAB 1.04M 216 views 0 downloads 1 credits
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Resource Overview

1. Principles and basic methods of digital signal modulation and demodulation 2. Simulink-based simulation of digital signal modulation and demodulation 3. GUI interface design and M-file programming in MATLAB 4. Development of a digital modulation and demodulation demonstration system using MATLAB

Detailed Documentation

In this article, we explore the principles and fundamental methods of digital signal modulation and demodulation, along with Simulink-based simulations. We will demonstrate how to implement various modulation schemes (such as ASK, FSK, and PSK) using MATLAB's Simulink blocks, including parameter configuration for carrier frequency, symbol rate, and filter design. Additionally, we cover GUI interface design using MATLAB's App Designer or GUIDE toolbox, and M-file programming techniques for creating custom modulation/demodulation algorithms. The implementation involves key functions like comm.PSKModulator and comm.PSKDemodulator for phase-shift keying operations, and fdesign for filter design. Finally, we will build a comprehensive digital modulation and demodulation demonstration system in MATLAB, integrating GUI components with backend processing to visualize signal waveforms, constellation diagrams, and bit error rate performance metrics.

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