| 小波阈值降噪技术在齿轮箱振动信号处理中的应用研究 |
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| 引用本文： | 刘自然,文金选,何涛.小波阈值降噪技术在齿轮箱振动信号处理中的应用研究[J].现代制造工程,2010(4). |
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| 作者姓名： | 刘自然 文金选 何涛 |
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| 作者单位： | 河南工业大学机电工程学院,郑州,450007 |
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| 基金项目： | 河南工业大学科研基金 |
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| 摘 要： | 阐述一维信号的小波降噪原理及小波阈值降噪方法,用MATLAB软件对齿轮箱振动信号进行降噪处理。利用图像和计算数据说明不同小波函数和不同阈值规则的消噪效果,得出Stein无偏似然估计阈值(Rigrsure阈值)方法对强噪声复杂的齿轮箱振动信号降噪效果最佳。
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| 关 键 词： | 小波 振动信号 噪声 阈值降噪 |
Application of wavelet threshold de-noising technique in the gearbox vibration signal processing |
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| LIU Zi-ran,WEN Jin-xuan,HE Tao.Application of wavelet threshold de-noising technique in the gearbox vibration signal processing[J].Modern Manufacturing Engineering,2010(4). |
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| Authors: | LIU Zi-ran WEN Jin-xuan HE Tao |
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| Affiliation: | LIU Zi-ran,WEN Jin-xuan,HE Tao (School of Mechanical , Electrical Engineering,Henan University of Technology,Zhengzhou 450007,China) |
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| Abstract: | Describes wavelet noise reduction theory of one-dimensional signal and wavelet thresholding methods,and processes the gearbox vibration signal for noise reduction using MATLAB.The images and calculations show the de-noising results of different wavelet functions and different threshold rules,through which obtains that Stein unbiased risk estimate threshold(Rigrsure threshold)method,for strong noise,complex vibration signals of gearbox,has the best denoising effect. |
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| Keywords: | wavelet vibration signal noise threshold de-noising technique |
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