Best wavelet basis for wavelet transforms in acoustic emission signals of concrete damage process

被引：23
|
作者：
Wang, Y. [1 ]
Chen, S. J. [1 ]
Liu, S. J. [1 ]
Hu, H. X. [1 ]
机构：
[1] Hohai Univ, Coll Civil & Transportat Engn, Nanjing 210098, Jiangsu, Peoples R China
来源：
RUSSIAN JOURNAL OF NONDESTRUCTIVE TESTING | 2016年 / 52卷 / 03期
基金：
中国国家自然科学基金;
关键词：
concrete; acoustic emission; wavelet transforms; the best wavelet basis; energy-entropy; PACKET ANALYSIS; ENTROPY; FIELDS;
D O I：
10.1134/S1061830916030104
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
It is critical to select the best wavelet basis for implementing wavelet algorithms. Firstly, the mathematical characteristics of the eight kinds of wavelet basis commonly used in the field of engineering are summarized and compared based on the analysis of the features of acoustic emission signals from concrete damage process. Secondly, wavelet basis suitable for acoustic emission signals in concrete damage are given by the theoretical analysis. Finally, the best wavelet basis for wavelet transforms in acoustic emission signals of concrete damage process are obtained by calculating the energy entropy. The results show that the energy entropy can be used to select the wavelet basis for acoustic emission signals during the process of concrete damage. Among them, the wavelets of Symlets can be used as the optimum wavelet basis.
引用
收藏
页码：125 / 133
页数：9
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