Table 2 Quantitative evaluation of the denoising effect of different wavelet basis functions.

From: Investigation of microseismic signal denoising using an improved wavelet adaptive thresholding method

 

Haar

Db1

Db4

Db8

Bior2.4

Coif1

Coif4

Sym4

Sym8

SNR(dB)

8.784

8.784

12.675

11.954

10.357

11.315

12.525

11.717

12.418

RMSE

1.494

1.494

0.954

1.038

1.246

1.246

1.037

1.246

1.246

Operation hours(s)

0.661

0.668

0.655

0.989

0.659

0.627

0.926

0.885

0.542

Sample Entropy

0.0095

0.0095

0.0054

0.0059

0.0102

0.0075

0.0076

0.0068

0.0078

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