MWPT-IHHI (the denoising method by combining a multi-threshold wavelet packet transform and an improved Hilbert-Huang transform) makes use of WPT and HHT method for microseismic signals from a coal seam hydraulic fracturing.
The package comes as a collection of 4 modules:
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FSWT (microseismic signal in the time and frequency domain).
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RickerWave (generate synthetic signals in conjunction with white Gaussian noise).
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MWPT (multi-threshold wavelet packet transform).
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Data (microseismic data were obtained from a coal mine in China).