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A Nonlinear Method of Removing Harmonic Noise in Geophysical Data : Volume 18, Issue 3 (21/06/2011)

By Jeng, Y.

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Book Id: WPLBN0003983667
Format Type: PDF Article :
File Size: Pages 13
Reproduction Date: 2015

Title: A Nonlinear Method of Removing Harmonic Noise in Geophysical Data : Volume 18, Issue 3 (21/06/2011)  
Author: Jeng, Y.
Volume: Vol. 18, Issue 3
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Chen, C., & Jeng, Y. (2011). A Nonlinear Method of Removing Harmonic Noise in Geophysical Data : Volume 18, Issue 3 (21/06/2011). Retrieved from http://hawaiilibrary.net/


Description
Description: Department of Earth Sciences, National Taiwan Normal University, 88, Sec. 4, Ting-Chou Road, Taipei, 116, Taiwan. A nonlinear, adaptive method to remove the harmonic noise that commonly resides in geophysical data is proposed in this study. This filtering method is based on the ensemble empirical mode decomposition algorithm in conjunction with the logarithmic transform. We present a synthetic model study to investigate the capability of signal reconstruction from the decomposed data, and compare the results with those derived from other 2-D adaptive filters. Applications to the real seismic data acquired by using an ocean bottom seismograph and to a shot gather of the ground penetrating radar demonstrate the robustness of this method. Our work proposes a concept that instead of Fourier-based approaches, the harmonic noise removal in geophysical data can be achieved effectively by using an alternative nonlinear adaptive data analysis method, which has been applied extensively in other scientific studies.

Summary
A nonlinear method of removing harmonic noise in geophysical data

Excerpt
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