| 小波分析在振动信号去噪中的应用 |
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| 引用本文： | 胡俊文,周国荣. 小波分析在振动信号去噪中的应用[J]. 机械工程与自动化, 2010, 0(1): 128-130 |
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| 作者姓名： | 胡俊文 周国荣 |
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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,410083 |
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| 摘 要： | 旋转机械振动信号是监测和诊断设备运行状态的重要信息,但是采样信号不可避免地受到各种噪声和干扰的污染。介绍了采用小波分析对振动信号进行去噪处理。通过对噪声信号的特性分析,用一维小波对信号进行分析和研究,并在MATLAB环境下对信号进行详尽的仿真研究,验证了小波去噪的优越性,并总结了应用小波去噪的一些实际经验。
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| 关 键 词： | 小波分析 去噪 仿真 |
Application of Wavelet Analysis in Vibration Signal Denoising |
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| HU Jun-wen,ZHOU Guo-rong. Application of Wavelet Analysis in Vibration Signal Denoising[J]. Mechanical Engineering & Automation, 2010, 0(1): 128-130 |
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| Authors: | HU Jun-wen ZHOU Guo-rong |
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| Affiliation: | HU Jun-wen,ZHOU Guo-rong(School of Information Science , Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | The vibration signal of rotating machinery is the important information for monitoring and diagnosing the running status of machinery.But the sampling signals are inevitably influenced by noise.In this article,wavelet analysis was applied to the vibration signal denoising.Based on characteristic analysis of noise signal,the one-dimensional wavelet was used to denoise the vibration signal.And the advantage of the wavelet denoising was demonstrated by simulation with MATLAB.Some practical experiences about wa... |
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| Keywords: | wavelet analysis denoising simulation |
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