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Abstract: According to the quality of high-order statistics of the
impact, a new method is presented to extract the feature of weak impact
component hidden in the mechanical signal. The proposed method is based
on blind deconvolution and wavelet soft-thresholding denoising method.
Practically, using the presented method, the characteristics of weak
impact component can be extracted well.
Key words: Impact Soft-thresholding denoising Blind
deconvolution Feature extraction
CLC No: TH113
Received 20010509, received in revised form
20010925
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