Description: Wavelet denoising first signal wavelet decomposition, in general, the noise signal contained in a more details of a high frequency, thus, to use other forms of threshold threshold decomposed wavelet coefficients out, and then the signal wavelet weight Structure of the signal noise reduction can be achieved by wood. The signal noise in the signal is essentially beyond been part of the useful part of the signal recovery process.
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db4 - 副本.c
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