Microseismic event denoising via adaptive directional vector median filters

• Autorzy: Zheng J. , Lu J.-R. , Jiang T.-Q. , Liang Z.

Identyfikatory

DOI

10.1007/s11600-017-0005-1

• Języki publikacji: EN

Abstrakty

EN

We present a novel denoising scheme via Radon transform-based adaptive vector directional median filters named adaptive directional vector median filter (AD-VMF) to suppress noise for microseismic downhole dataset. AD-VMF contains three major steps for microseismic downhole data processing: (i) applying Radon transform on the microseismic data to obtain the parameters of the waves, (ii) performing S-transform to determine the parameters for filters, and (iii) applying the parameters for vector median filter (VMF) to denoise the data. The steps (i) and (ii) can realize the automatic direction detection. The proposed algorithm is tested with synthetic and field datasets that were recorded with a vertical array of receivers. The P-wave and S-wave direct arrivals are properly denoised for poor signal-to-noise ratio (SNR) records. In the simulation case, we also evaluate the performance with mean square error (MSE) in terms of signal-to-noise ratio (SNR). The result shows that the distortion of the proposed method is very low; the SNR is even less than dB.

Słowa kluczowe

EN

microseismic; denoising; adaptive directional vector median filter (AD-VMF); vector median filter (VMF)

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2017
• Tom: Vol. 65, no. 1
• Strony: 47--54
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

Zheng J.

• State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing, China

autor

Lu J.-R.

• College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing, China

autor

Jiang T.-Q.

• College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing, China

autor

Liang Z.

• Anhui University of Science and Technology, Huainan, China

Bibliografia

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