Kurtosis-based threshold denoising method and its application in vibration signal analysis

SUI Wen-tao ZHANG Dan

Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (7) : 155-158.

PDF(1881 KB)
PDF(1881 KB)
Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (7) : 155-158.
论文

Kurtosis-based threshold denoising method and its application in vibration signal analysis

  • SUI Wen-tao 1 ZHANG Dan 2
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Abstract

The commonly used wavelet de-noising methods were analyzed, and a comprehensive threshold method based on the kurtosis of vibration signal was proposed. The threshold was determined on the wavelet coefficients of signal and noise at different scales. The soft and hard threshold functions were combined of based on their merits, and a new function with adjustable threshold parameter was proposed. Comparative analysis with other commonly used wavelet de-noising methods was carried out.

Key words

Vibration signal / noise reduction / threshold / threshold function

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SUI Wen-tao ZHANG Dan . Kurtosis-based threshold denoising method and its application in vibration signal analysis[J]. Journal of Vibration and Shock, 2013, 32(7): 155-158
PDF(1881 KB)

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