| 特征声发射信号的时频能量分析 |
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| 引用本文： | 付元杰,毛汉领,黄振峰.特征声发射信号的时频能量分析[J].装备制造技术,2006(2):27-29. |
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| 作者姓名： | 付元杰 毛汉领 黄振峰 |
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| 作者单位： | 广西大学机械工程学院,广西,南宁,530004 |
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| 摘 要： | 由于声发射信号多频率多模式的特点，不同频率的声发射信号表现声发射源特性的能力有所不同，这在应用中给声发射信号的处理带来了很大的困难，文章将信号引入到时频域，利用时频联合分布的能量特性，在时频域中计算信号的能量，以能量为依据选取声发射信号中的特征声发射信号，得到了满意结果。
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| 关 键 词： | 声发射 时频分析 信号处理 |
| 文章编号： | 1672-545X(2006)02-0027-03 |
| 收稿时间： | 2006-03-20 |
| 修稿时间： | 2006年3月20日 |
Analysis of Time-Frequency and Energy on Characteristic Acoustic Emission Signals |
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| Authors: | FU Yuan-jie MAO Han-ling HUANG Zhen-feng |
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| Affiliation: | Guangxi University , School of Mechanical Engineering,Nanning 530004,China |
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| Abstract: | Acoustic emission signals are characterized by different frequencies and different modes. Signals with different frequencies have different capacities to reflect the characteristic of the Acoustic emission source. This situation makes it a hard work to use acoustic emission in solving problems. The research shows that the signals are processed in time-frequency domain by its energy, and the characteristic signals are extracted based on its energy in time-frequency domain. The satisfying result is gained. |
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| Keywords: | Acoustic Emission Time-Frequency Analysis Signal Process |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
