| 小波分析在机车振动信号分析中的应用 |
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| 引用本文： | 吴剑锋 危韧勇 李志勇. 小波分析在机车振动信号分析中的应用[J]. 铁道机车车辆, 2005, 25(5): 22-24 |
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| 作者姓名： | 吴剑锋 危韧勇 李志勇 |
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| 作者单位： | 中南大学信息科学与工程学院 湖南长沙410075(吴剑锋，危韧勇)，中南大学信息科学与工程学院 湖南长沙410075(李志勇) |
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| 基金项目： | 国家自然科学基金资助项目（50405034） |
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| 摘 要： | 通常从机车上采集的振动信号混有大量的噪声,现利用小波变换进行降噪,仿真结果表明小波变换能够有效地去除信号中的噪声,特别适应于信号中混有白噪声。提出利用小波包技术构造机车振动信息的特征向量,对检测机车的走行品质有一定的应用价值和现实意义。
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| 关 键 词： | 小波分析 振动信号 降噪 特征提取 |
| 文章编号： | 1008-7842（2005）05-0022-03 |
| 收稿时间： | 2005-03-30 |
| 修稿时间： | 2005-03-30 |
Application of Wavelet Analysis in the Vibrating Signal Analysis of Locomotive Bogie |
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| WU Jian - feng , WEI Ren - yong , LI Zhi - yong. Application of Wavelet Analysis in the Vibrating Signal Analysis of Locomotive Bogie[J]. Railway Locomotive & Car, 2005, 25(5): 22-24 |
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| Authors: | WU Jian - feng WEI Ren - yong LI Zhi - yong |
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| Affiliation: | College of Information Science and Engineering, Central South University, Changsha Hunan 410075, China |
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| Abstract: | Generally,the vibration signal collected from the train mixs up much noise.In this paper,We use wavelet transform in signal to denoise,The result of emulation proves this method is effective especially on signal mixing up white noisy.The eigenvector of the vibrating signal is rebuild by technology of wavelet package,It is valuable and effective to detect the ride quality of locomotive bogie. |
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| Keywords: | wavelet analysis vibrating signal denoise characteristic pick-up |
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