BPSK, QPSK, and 8PSK Modulation and Demodulation MATLAB Implementation

MATLAB programs for BPSK, QPSK, and 8PSK modulation and demodulation have undergone rigorous testing and demonstrated long-term stable operation, making them highly valuable for practical applications. These implementations include key digital communication techniques such as constellation mapping for different modulation orders (BPSK: 2 points, QPSK: 4 points, 8PSK: 8 points), raised-cosine pulse shaping for spectral efficiency, and coherent detection with carrier recovery mechanisms. The programs are designed for wireless communication systems, providing robust signal processing capabilities for both academic research and engineering practice. They feature modular code architecture with separate functions for modulation (including symbol mapping and pulse shaping) and demodulation (incorporating matched filtering and maximum likelihood detection). Suitable for educational purposes and industrial applications, these well-tested programs offer excellent performance across various domains, enabling innovative developments in digital communication system design. The implementation includes error rate calculation modules and signal visualization tools for comprehensive system analysis.