QPSK and BPSK Modulation and Demodulation Implementation

This program provides a complete implementation of QPSK and BPSK modulation and demodulation processes for reference purposes. The implementation utilizes key digital modulation techniques widely employed in wireless communication systems. The code structure includes modular components for signal generation, constellation mapping, pulse shaping, and demodulation algorithms. Key implementation features include: coherent detection mechanisms, symbol synchronization methods, and error probability calculation modules. Through this program, users can study the fundamental principles of quadrature phase shift keying (QPSK) and binary phase shift keying (BPSK) modulation schemes, examine the constellation diagram generation process, and analyze performance metrics like bit error rate (BER). The modular design allows for easy customization and optimization according to specific application requirements. The implementation demonstrates practical aspects of digital communication systems including signal upsampling, matched filtering, and decision threshold optimization. We hope this program serves as a valuable resource for understanding digital modulation techniques and their practical implementations!