MATLAB Code Implementation of EMD Algorithm Source Code

This EMD program source code implements the Empirical Mode Decomposition algorithm with built-in edge effect processing capabilities. The algorithm decomposes non-stationary signals into a series of Intrinsic Mode Functions (IMFs) through an iterative sifting process. Each IMF represents distinct frequency and amplitude components, allowing for detailed analysis of signal characteristics. The implementation includes boundary handling techniques to minimize end effects during the decomposition process. The code structure typically consists of key functions for: - Signal preprocessing and endpoint management - Iterative extremum identification and envelope construction - IMF extraction criteria based on standard deviation thresholds - Residual signal calculation for multi-level decomposition This EMD source code is particularly valuable for applications requiring non-stationary signal analysis, such as audio processing, vibration analysis, biomedical signal processing, and image feature extraction. The algorithm's adaptive nature makes it effective for analyzing signals with time-varying frequency components without requiring predetermined basis functions.