Denoising method, device and electronic equipment for blasting vibration response signal

Abstract

The present application discloses a method for denoising blasting vibration response signals. The method includes: obtaining blasting vibration response signals to be processed, and obtaining high-frequency blasting vibration response signals and low-frequency blasting vibration response signals through wavelet packet decomposition, and then denoising high-frequency blasting vibration response signals. The blasting vibration response signal and the low-frequency blasting vibration response signal are subjected to threshold quantization processing to obtain the quantified high-frequency blasting vibration response signal and the quantified low-frequency blasting vibration response signal, and then all quantified high-frequency blasting vibration response signals and all quantized low-frequency blasting vibration response signals The wavelet packet inverse transformation is carried out to obtain the target blasting vibration response signal. Therefore, this application can no longer rely on Fourier transform as the only means to remove the noise of the blasting vibration response signal, through the wavelet packet transform that can perform better time-frequency localization analysis on signals containing a large amount of mid- and high-frequency information The noise of the blasting vibration response signal is processed and removed, and the effective denoising of the signal is realized.

Description

technical field [0001] The present application relates to the technical field of data processing, in particular to a denoising method, device and electronic equipment for blasting vibration response signals. Background technique [0002] In recent years, with the rapid improvement of the intelligent level of mining equipment, the demand for ensuring the safety of mine roadway operations is also increasing. Among them, the safety judgment of the surrounding rock of the mine roadway under the blasting load mainly depends on the analysis based on the original blasting vibration response signal. However, the original blasting vibration signals obtained through mine site monitoring are often mixed with certain noises, which lead to low accuracy and poor reliability when processing and analyzing the signals to obtain their time and frequency domain characteristics. [0003] In related technologies, in order to weaken the noise existing in the original blasting vibration response ...

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Problems solved by technology

[0007] For this reason, the first purpose of this application is to propose a denoising method for blasting vibration response signals, which is used to solve the technical problems in the prior art that cannot effectively improve the analysis accuracy and efficiency of blasting vibration response signals

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