Research on an improved de-noising method for rotor vibration signals

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	Research on an improved de-noising method for rotor vibration signals
	Deng, Linfeng; Zhao, Rongzhen; Gong, Jun
	2011-09-01
发表期刊	Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument
ISSN	02543087
卷号	32 期号:9 页码:1961-1966
摘要	In order to improve the performance of de-noising method for rotor vibration signals, a new de-noising method based on improved median filter and wavelet packet technique is proposed through analyzing respective properties of different noise components and relevant de-noising methods. At first, the method calculates the window width of median filter according to sampling frequency to eliminate impulse noise and partial white noise. And then, an improved self-adaptive wavelet packet de-noising technique is used to remove the residual white noise. Subsequently, useful vibration signals are obtained after the previous processing. Simulation signals and rotor experimental vibration signals were used to verify the performance of the method. Experiment results show that the method can not only effectively eliminate the mixed complex noises, but also preserve the fault character details, which demonstrates that the proposed method outperforms the method based on wavelet domain median filter.
关键词	Faulting Impulse noise Median filters Vibration analysis Wavelet analysis White noise Adaptive wavelet packets Denoising methods Noise Noise components Rotor vibrations Sampling frequencies Simulation signals Wavelet packet de-noising
收录类别	EI
语种	中文
出版者	Science Press
EI入藏号	20114214445967
EI主题词	Signal denoising
EI分类号	484.1 Earthquake Measurements and Analysis - 716.1 Information Theory and Signal Processing - 921 Mathematics
来源库	Compendex
分类代码	484.1 Earthquake Measurements and Analysis - 716.1 Information Theory and Signal Processing - 921 Mathematics
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111270
专题	机电工程学院
作者单位	College of Mechanical and Electronic Engineering, Key Laboratory of Digital Manufacturing Technology and Application, Lanzhou University of Technology, Lanzhou 730050, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Deng, Linfeng,Zhao, Rongzhen,Gong, Jun. Research on an improved de-noising method for rotor vibration signals[J]. Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument,2011,32(9):1961-1966.
APA	Deng, Linfeng,Zhao, Rongzhen,&Gong, Jun.(2011).Research on an improved de-noising method for rotor vibration signals.Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument,32(9),1961-1966.
MLA	Deng, Linfeng,et al."Research on an improved de-noising method for rotor vibration signals".Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument 32.9(2011):1961-1966.