| 发动机声信号特征提取及方法改进 |
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| 引用本文： | 任志英,严世榕.发动机声信号特征提取及方法改进[J].福建工程学院学报,2008,6(Z1). |
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| 作者姓名： | 任志英 严世榕 |
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| 作者单位： | 福州大学,机械工程学院车辆工程系,福建,福州,350002 |
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| 摘 要： | 根据声信号非平稳这一特点,对传统特征提取的方法进行改进,提出一种基于区间小波包分解和频带局部能量法相结合特征提取法,经实践证明,基于频带局部能量区间小波包特征提取法与传统小波包特征提取法相比,能够更有效地提取发动机的故障信息.
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| 关 键 词： | 发动机 非平稳信号 区间小波包 频带局部能量 |
The characteristic extract of engine sound signals and its improvement |
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| Ren Zhiying,Yan Shirong.The characteristic extract of engine sound signals and its improvement[J].Journal of Fujian University of Technology,2008,6(Z1). |
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| Authors: | Ren Zhiying Yan Shirong |
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| Institution: | Ren Zhiying,Yan Shirong(Vehicle Engineering Department,College of Mechanical Engineering,Fuzhou University,Fuzhou 350002,China) |
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| Abstract: | The traditional extracting method of engine sound signals was improved based on non-steady features of sound signals.A characteristic extracting method integrating sector wavelet packet decomposition and frequency band partial energy method was proposed.The results indicate that the improved method is more efficient in extracting fault engine signals. |
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| Keywords: | engine non-steady signal sector wavelet packet frequency band partial energy |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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