can anybody share the codes for Empirical Mode Decomposition of EEG signal?

I want to perform the EMD of the EEG dataset.

Answer 1

[Prasanna]

Hi Shaswati,

To perform EMD on EEG signals using MATLAB, the ‘emd’ function can be used. It returns the intrinsic mode functions (‘imf’), residual signal and additional info for diagnostic purposes. The input for the function is a time-domain signal and corresponding name-value arguments. A basic code on the ‘emd’ function assuming a sample EEG like signal is as follows:

% Generate a sample EEG-like signal 
fs = 256; % Sampling frequency 
t = 0:1/fs:10; 
% Create a synthetic EEG signal with noise 
eeg_signal = sin(2 * pi * 1 * t) + 0.5 * randn(size(t)); % 1 Hz sine wave + noise 

% Perform Empirical Mode Decomposition 
[imf, residual] = emd(eeg_signal); 

The above code gives the following output:

For more information regarding the ‘emd’ function, refer to this documentation: https://www.mathworks.com/help/signal/ref/emd.html