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- W2371944274 abstract "The de-noising principle using wavelet was discussed and the de-noising property was compared with that of using general threshold strategy. A per-level de-noising method based on analysis of autocorrelation of wavelet detailed coefficients was proposed. The maximum wavelet decomposing level was determined according to the minimum interest frequency. The steps of the per-level de-noising method were then given and the experimental study with a vibration model was carried out. The results prove that the method is advantageous to de-noising, which is more suitable to recover the interest weak signal buried in intenive background noise. The application of the method in the engine vibration was presented and the results show that it can inhibit the background noise effectively and recover the interest information satisfactorily." @default.
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- W2371944274 date "2009-01-01" @default.
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- W2371944274 title "Per-level threshold de-noising method using wavelet and its application in engine vibration analysis" @default.
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