Application of Improved Threshold’s Lifting Wavelet to the Analysis of the Dam’s Displacement

Xue Qin Zheng; Dong Qin; He Zhi Liu

doi:10.4028/www.scientific.net/AMM.226-228.1415

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 226-228Application of Improved Threshold’s Lifting...

Application of Improved Threshold’s Lifting Wavelet to the Analysis of the Dam’s Displacement

Abstract:

The series of dam’s deformation data can be seen as a string of digital signal, which is composed of different frequencies. Because of the high frequency noise in the noise information, a new method of improved threshold’s lifting wavelet function is demonstrated. Using this new method to abstract components of dam monitoring data. This new method can eliminate the defect existing in traditional threshold function during the denoising process. The example shows that the lifting wavelet based on improved threshold function is more accurate and objective in the process of abstracting component compared with the traditional wavelet , which is feasible to analyze the dam performance precisely and practically. Therefore, it plays a pivotal role in the analysis of the dam performance.

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Periodical:

Applied Mechanics and Materials (Volumes 226-228)

Pages:

1415-1419

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.226-228.1415

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Online since:

November 2012

Authors:

Xue Qin Zheng, Dong Qin, He Zhi Liu

Keywords:

Abstraction, Component, Dam Monitoring Data, Improved Threshold, Lifting Wavelet

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