Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy Theory

The entropy method describes the change in the signal state from a macroscopic angle and weakens the interference generated by random noise. From the angle of chaos, which describes the first arrival of microseismic signals, it predicts the trend of noise entropy based on the grey theory. The result...

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Main Authors:	Bao-xin Jia, Ao Sun, Yi-shan Pan, Hao Chen, Feng-pu Liu
Format:	Article
Language:	English
Published:	Hindawi Limited 2019-01-01
Series:	Advances in Civil Engineering
Online Access:	http://dx.doi.org/10.1155/2019/6074781

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spelling	doaj-6c5820b3a45c4d4bb81462085dca55b42020-11-24T20:44:29ZengHindawi LimitedAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/60747816074781Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy TheoryBao-xin Jia0Ao Sun1Yi-shan Pan2Hao Chen3Feng-pu Liu4School of Civil Engineering, Liaoning Technical University, Fuxin 123000, ChinaSchool of Civil Engineering, Liaoning Technical University, Fuxin 123000, ChinaLiaoning University, Shenyang 110036, ChinaSchool of Civil Engineering, Liaoning Technical University, Fuxin 123000, ChinaSchool of Civil Engineering, Liaoning Technical University, Fuxin 123000, ChinaThe entropy method describes the change in the signal state from a macroscopic angle and weakens the interference generated by random noise. From the angle of chaos, which describes the first arrival of microseismic signals, it predicts the trend of noise entropy based on the grey theory. The results indicate that the entropy method is sensitive to amplitude, frequency, and seismic phase changes. Compared with traditional methods, the entropy method has better noise immunity. In terms of the influence of the pickup parameter on the resulting error, the entropy method demonstrated the best result and produces the smallest error.http://dx.doi.org/10.1155/2019/6074781
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Bao-xin Jia Ao Sun Yi-shan Pan Hao Chen Feng-pu Liu
spellingShingle	Bao-xin Jia Ao Sun Yi-shan Pan Hao Chen Feng-pu Liu Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy Theory Advances in Civil Engineering
author_facet	Bao-xin Jia Ao Sun Yi-shan Pan Hao Chen Feng-pu Liu
author_sort	Bao-xin Jia
title	Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy Theory
title_short	Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy Theory
title_full	Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy Theory
title_fullStr	Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy Theory
title_full_unstemmed	Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy Theory
title_sort	accurate method for picking up the first arrival time of microseismic signals based on entropy theory
publisher	Hindawi Limited
series	Advances in Civil Engineering
issn	1687-8086 1687-8094
publishDate	2019-01-01
description	The entropy method describes the change in the signal state from a macroscopic angle and weakens the interference generated by random noise. From the angle of chaos, which describes the first arrival of microseismic signals, it predicts the trend of noise entropy based on the grey theory. The results indicate that the entropy method is sensitive to amplitude, frequency, and seismic phase changes. Compared with traditional methods, the entropy method has better noise immunity. In terms of the influence of the pickup parameter on the resulting error, the entropy method demonstrated the best result and produces the smallest error.
url	http://dx.doi.org/10.1155/2019/6074781
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Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy Theory

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