MATLAB Implementation of Communication System with Continuous Phase Modulation (MSK)

This article introduces communication systems and demonstrates how to implement Continuous Phase Modulation (MSK) and demodulation using MATLAB. Communication systems are fundamental technologies for information transmission and reception that play a vital role in modern society. Continuous Phase Modulation is a specialized modulation technique that enables higher information density transmission while maintaining phase continuity in the signal waveform. In MATLAB implementation, MSK modulation typically involves: - Generating baseband signals using pulse shaping functions - Implementing phase continuity through mathematical integration of frequency pulses - Creating orthogonal in-phase and quadrature components using cosine and sine functions For demodulation, the implementation includes: - Coherent detection using matched filters or correlators - Phase tracking algorithms to maintain synchronization - Decision circuits for symbol recovery based on phase differences The MATLAB realization of MSK modulation and demodulation provides practical insights into communication system operations, allowing developers to experiment with parameters like symbol rate, carrier frequency, and filter design. Through hands-on coding exercises, users can better understand key concepts such as spectral efficiency, bit error rate performance, and the importance of phase continuity in digital communications. Let's explore this fascinating topic through practical MATLAB implementation!