A Denoising Method Based on EEMD and Interval-Thresholding Strategy

Zhi Zhou; Xing Man Yang; Gang Chen

doi:10.4028/www.scientific.net/AMR.902.336

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 902A Denoising Method Based on EEMD and...

A Denoising Method Based on EEMD and Interval-Thresholding Strategy

Abstract:

As a conventional signal denoising method, wavelet thresholding denoising has problems including selection of basis vectors and poor denoising effect. EMD is an expansion of basis functions that are signal-dependent, but with the problem of mode mixing. In order to solve these problems, a denoising method based on EEMD and interval-thresholding strategy, an adaptive signal processing method is proposed, which can achieve good effects for signal denoising. Firstly, investigated signal is decomposed into IMFs by EEMD adaptively. Then, each IMF is denoising by interval-thresholding method based on sparse code shrinkage. Lastly, the denoised signal is reconstructed by denoised IMFs. Moreover, the presented method is validated by numerical simulation experiment.

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Periodical:

Advanced Materials Research (Volume 902)

Pages:

336-340

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.902.336

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Online since:

February 2014

Authors:

Zhi Zhou*, Xing Man Yang, Gang Chen

Keywords:

De-Noising, EEMD, Interval-Thresholding, Signal Processing

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