MATLAB Implementation of AMI Line Coding

This document presents my self-written MATLAB code for implementing AMI (Alternate Mark Inversion) line coding. Users should exercise caution when downloading and using this code, and I welcome any corrections if errors are identified. Additional relevant information and explanations are provided below. AMI coding is a widely used line encoding method for transmitting binary data in digital communications. It represents binary values by alternating signal polarity - typically maintaining zero voltage for binary 0 and alternating between positive and negative voltages for consecutive binary 1s. This technique effectively reduces DC components in transmission and improves transmission efficiency. In my implementation, I employed fundamental programming techniques and algorithms to ensure code correctness and reliability. The key components include: - Binary input sequence processing - Polarity tracking for alternating 1s - Signal level mapping (positive/negative/zero voltages) - Output waveform generation The code structure features: 1. Input validation for binary sequences 2. State management for polarity alternation 3. Efficient vectorization for signal generation 4. Visualization options for encoded waveforms I hope this code proves helpful for understanding and implementing AMI encoding in communication systems!