Source Code for Digital Channel Receiver Implementation

This is a source code implementation for a digital channel receiver, originally developed for my graduation project. The code demonstrates key aspects of digital signal processing including signal acquisition, filtering, and demodulation algorithms. Digital channel receivers are essential devices for receiving and decoding digital signals, performing critical operations such as channel selection, signal conditioning, and data extraction. The implementation processes signals from various channels through multiple stages: analog-to-digital conversion, digital filtering using FIR or IIR designs, synchronization algorithms (like PLL implementations), and error correction coding (such as Viterbi decoding). Key functions include adaptive equalization to combat channel distortions, signal-to-noise ratio estimation, and constellation demodulation for different modulation schemes (QPSK, QAM, etc.). By optimizing the signal processing chain and implementing efficient algorithms for noise reduction and interference cancellation, digital channel receivers achieve faster, more accurate, and reliable signal reception. The source code provides a foundation for further enhancements in areas like multi-channel processing, real-time implementation considerations, and performance optimization under varying channel conditions and transmission rates.