MATLAB Code Implementation for FSK Modulation

This document provides a complete MATLAB program for FSK modulation. The implementation includes both standard FSK modulation and demodulation code, along with CPFSK (Continuous Phase Frequency Shift Keying) modulator and demodulator implementations. The program features digital signal processing techniques for frequency shifting, carrier wave generation, and phase-continuous frequency transitions. Key functions implement frequency selection based on input data symbols, using orthogonal carriers for different frequency states. The demodulator section employs correlation receivers or frequency discrimination methods for signal detection. The CPFSK implementation maintains phase continuity between symbol transitions using integrated frequency modulation approaches. This code serves as an educational tool for understanding FSK modulation principles and provides reliable implementations for practical applications. The program is designed to support research and development projects with well-structured, commented code that demonstrates optimal digital modulation techniques.