An information processing method for acoustic emission signal inspired from musical staff

被引：8

作者：

Zheng, Wei ^{[1
]}

Wu, Chunxian ^{[1
]}

机构：

[1] Chongqing Univ, Coll Optoelect Engn, Key Lab Optoelect Technol & Syst, Educ Minist China, Chongqing 400044, Peoples R China

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2016年 / 66-67卷

基金：

中国国家自然科学基金;

关键词：

Acoustic emission; Musical staff; Information processing; STRUCTURAL-MATERIALS; WAVELET TRANSFORM; DAMAGE; IDENTIFICATION; INITIATION; POSITION; CONCRETE;

D O I：

10.1016/j.ymssp.2015.06.015

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This study proposes a musical-staff-inspired signal processing method for standard description expressions for discrete signals and describing the integrated characteristics of acoustic emission (AE) signals. The method maps various AE signals with complex environments into the normalized musical space. Four new indexes are proposed to comprehensively describe the signal. Several key features, such as contour, amplitude, and signal changing rate, are quantitatively expressed in a normalized musical space. The processed information requires only a small storage space to maintain high fidelity. The method is illustrated by using experiments on sandstones and computed tomography (CT) scanning to determine its validity for AE signal processing. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：388 / 398

页数：11

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