Processing Time-domain Induced Polarization Data Using VMD

This paper outlines a multistage VMD operation to extract IP decay from within a measured TDIP data. See project details at

Run_MultistageVMD4IPdata.m: This file runs the proposed multistage VMD operator for TDIP data processing.

MultistageVMD4IPdata.m: This is the main file that implements the proposed multistage VMD operator designed to process TDIP data and extract IP decay.

IPData.mat: This .mat file contains a synthetic example of TDIP data. Specifically, it contains

1. A clean IP decay 'x' synthetically genarated through Aarhus Inv
2. A synthetically generated noise 'noise' containing harmonic noise and the random noise cases
3. A noisy version 'xn' obtained by adding both clean IP signal 'x' and the noise, i.e., xn = x + noise
4. Sampling frequency 'Fs' of the synthetic data

extr.m: This function is called by the main function MultistageVMD4IPdata.m to finds extrema locations in a given time series.