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
刊名	Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument
	2011-09-01
卷号	32 期号:9 页码:1961-1966
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
ISSN号	02543087
英文摘要	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.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://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
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.