| 声发射信号特征分析中的小波变换应用方法 |
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| 引用本文： | 庆光蔚,岳林,冯月贵,王会方. 声发射信号特征分析中的小波变换应用方法[J]. 无损检测, 2012, 0(11): 48-51,65 |
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| 作者姓名： | 庆光蔚 岳林 冯月贵 王会方 |
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| 作者单位： | [1]南京航空航天大学,南京210016 [2]南京市特种设备安全监督检验研究院,南京210002 |
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| 基金项目： | 国家质检总局科技计划资助项目（2009QK149） |
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| 摘 要： | 对声发射信号进行分析与处理是目前获取声发射源信息的唯一有效途径,也是声发射技术发展的难点和瓶颈。针对声发射信号的特点,对小波变换用于声发射信号的特征分析问题进行了研究,总结出了适用于声发射信号的小波变换信号特征提取方法,并对未来小波变换在声发射领域的应用与研究方向进行了探讨。
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| 关 键 词： | 声发射 小波变换 特征提取 信号处理 |
Analysis of Acoustic Emission Signal Features Based on Wavelet Transform |
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| QING Guang-Wei,YUE Lin,FENG Yue-Gui,WANG Hui-Fang. Analysis of Acoustic Emission Signal Features Based on Wavelet Transform[J]. Nondestructive Testing, 2012, 0(11): 48-51,65 |
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| Authors: | QING Guang-Wei YUE Lin FENG Yue-Gui WANG Hui-Fang |
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| Affiliation: | 1.Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China; 2.Nanjing Special Equipment Inspection Institute,Nanjing 210002,China) |
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| Abstract: | Acoustic emission signal processing is the only effective method to acquire the acoustic emission source information by now and is also the bottleneck that affects its positive development.According to the characteristic of acoustic emission signal,a wavelet-based method of signal feature analysis was presented.The developing tendency of the application of wavelet transform in acoustic emission was discussed finally. |
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| Keywords: | Acoustic emission（AE） Wavelet transform Feature extraction Signal processing |
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