Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (5): 796.

• Articles • Previous Articles     Next Articles

Application of Dyadic Wavelet Transform Modulus Maximum Method to Denoising of Capillary Electrophoresis Signals

ZHONG Hong-Bo1,2, LI Guan-Bin2, LIU Hui3, ZHENG Jian-Bin3, CHEN Li-Ren1   

  1. 1. Institute of Chemistry and Physics in CAS, Lanzhou 730000, China;
    2. Department of Chemical Engineering, Shandong Institute of Light Industry, Jinan 250100, China;
    3. Institute of Electroanalytical Chemistry, Northwest University. Xi'an 710069, China
  • Received:2001-04-23 Online:2002-05-24 Published:2002-05-24

Abstract: In this paper, a dyadic wavelet transform modulus maximum de-noising method, which is based on the fact that the characteristics of wavelet transform modulus maximum of real signals are distinctively different from those of noises, was founded.The effect of the full width at half-maximum and noise quantum was investigated, and the selection of threshold was discussed.Finally, the method was applied to capillary electrophoresis signals.The experimental results show that this method can be used to pick up real signal and de-noise effectively.

Key words: Dyadic wavelet transform, Modulus Maximum, De-noise

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