MATLAB Implementation of DPSK Demodulation with Source Code

This package contains fully functional MATLAB source code for DPSK demodulation implementation. The code has been rigorously tested and verified for correct operation. For optimal understanding and utilization of this source code, here is essential background information about DPSK demodulation: DPSK (Differential Phase Shift Keying) is a digital modulation technique that converts digital information into discrete phase shifts in communication systems. Compared to conventional Phase Shift Keying (PSK), DPSK offers superior noise immunity and a more streamlined demodulation process. The demodulation algorithm typically involves comparing phase differences between consecutive symbols rather than absolute phase detection. The implementation employs MATLAB, a powerful computational programming environment widely used in scientific and engineering applications. The source code demonstrates MATLAB's capabilities through: - Clear signal processing workflow using built-in functions - Efficient phase difference calculation between sequential symbols - Decision logic implementation for symbol detection - Visualization routines for signal analysis and debugging Key algorithmic components include: 1. Signal preprocessing and synchronization 2. Phase extraction using trigonometric operations 3. Differential decoding through symbol-to-symbol phase comparison 4. Threshold-based decision making for bit determination The code architecture emphasizes readability with proper commenting, modular function design, and systematic variable naming. Validation tests confirm successful demodulation performance under various signal conditions. This implementation has passed comprehensive operational testing, ensuring reliability for educational, research, and development purposes. The code structure facilitates easy modification for different DPSK variants (e.g., DQPSK) and integration with existing communication systems. For technical support or clarification regarding the implementation details, please feel free to submit inquiries about specific code segments or algorithmic approaches.