Acoustic Detection Method for Underground Geological Structures in Coal Mines Based on EMD Denoising
Aiming at the non-stationary characteristics of underground acoustic signals,a coal mine geological structure acoustic detection method based on Empirical Mode Decomposition (EMD) denoising is proposed. This method utilizes the adaptive decomposition capability of EMD,combined with adaptive threshold determination and signal reconstruction techniques,effectively improving the signal-to-noise ratio of downhole acoustic signals. The experimental results show that this method can better preserve the acoustic response characteristics of geological structures compared to traditional wavelet thresholding denoising.
万方数据
维普
