(2,1,3) Convolutional Code Encoder and Decoder Implementation

This program implements a complete convolutional code encoder and decoder for the (2,1,3) configuration. The implementation includes detailed inline comments for each line of code, facilitating easy understanding and modification. The encoder processes input data streams using shift registers and generator polynomials to produce encoded sequences with code rate 1/2 and constraint length 3. The decoder employs the Viterbi algorithm for maximum likelihood sequence estimation, utilizing path metrics and traceback mechanisms to reconstruct the original data from received sequences. The code structure emphasizes readability through systematic variable naming, modular function design, and comprehensive documentation of key algorithms including state transitions, branch metric calculations, and survivor path selection. This implementation provides a practical tool for digital communication systems while serving as an educational resource for understanding convolutional coding principles.