De-Noising of Damage Signal in Wire Rope Based on Adaptive Lifting Wavelet

Wei Xia Zhan; Ji Wen Tan; Yan Wen

doi:10.4028/www.scientific.net/AMR.139-141.2556

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 139-141De-Noising of Damage Signal in Wire Rope Based on...

De-Noising of Damage Signal in Wire Rope Based on Adaptive Lifting Wavelet

Abstract:

At the basis of the adaptive lifting wavelet transform, a method was proposed for solving the problem of noise suppression of the wire rope damage signals. A wavelet with damage property was constructed via lifting scheme, that is,the adaptive update-filter and the adaptive predict-filter were designed using the statistics information of the wire rope damage signals. And the compromise algorithm between software-threshold and hard-threshold was used in the threshold processing. The traditional wavelet and the above proposed transform are applied in de-noising of the practical acquisition of wire rope damage signal. The contrast experiments show that the noise elimination with the improved lifting scheme is better than that achieved by traditional wavelet transform. Moreover, this presented scheme retains the effective information in the break signals and greatly improves the design flexibility and the process speed.

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Periodical:

Advanced Materials Research (Volumes 139-141)

Pages:

2556-2560

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.139-141.2556

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Online since:

October 2010

Authors:

Wei Xia Zhan, Ji Wen Tan, Yan Wen

Keywords:

Adaptive, Damage Signal, De-Noising, Lifting Wavelet, Wire Rope

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