Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy Theory
Auteur(s): |
Bao-xin Jia
Ao Sun Yi-shan Pan Hao Chen Feng-pu Liu |
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Médium: | article de revue |
Langue(s): | anglais |
Publié dans: | Advances in Civil Engineering, 2019, v. 2019 |
Page(s): | 1-17 |
DOI: | 10.1155/2019/6074781 |
Abstrait: |
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. |
Copyright: | © 2019 Bao-xin Jia et al. |
License: | Cette oeuvre a été publiée sous la license Creative Commons Attribution 4.0 (CC-BY 4.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée (avec le lien ci-dessus). Vous devez aussi indiquer si des changements on été fait vis-à-vis de l'original. |
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10310887 - Publié(e) le:
24.03.2019 - Modifié(e) le:
02.06.2021