MATLAB Implementation of Turbo Coding and Decoding with Trellis-Coded Modulation

This implementation provides comprehensive details about turbo coding and decoding technology, a widely-used error control coding technique in communication systems. The algorithm employs trellis-coded modulation to enhance communication reliability through redundant information integration. Atmospheric laser communication utilizes laser technology for information transmission through atmospheric channels. The custom-developed modulation module demonstrates the digital-to-analog signal conversion process, offering hands-on understanding of turbo-TCM working principles. The compressed archive contains multiple MATLAB programs and functions including: - Turbo encoder implementation using recursive systematic convolutional (RSC) codes - Interleaver algorithms for bit scrambling - TCM mapper functions for signal constellation design - Iterative decoding routines with Max-Log-MAP algorithm - Channel simulation modules for atmospheric laser communication scenarios These components work together to provide a complete simulation environment for studying turbo-TCM performance in various communication conditions.