Research on a Denoising Method Based on Wavelet Packet Shrinkage for Pulp

Author

Jiang, Peng ; Huang, Qingbo ; Kong, Yaguang ; Chai, Li

Author_Institution

Inst. of Inf. & Control, Hangzhou Dianzi Univ.

Volume

1

fYear

2006

fDate

20-24 June 2006

Firstpage

220

Lastpage

225

Abstract

A denoising method based on wavelet packet shrinkage for pulp thickness signals in paper-making processes was developed in this research. The principle of wavelet packet shrinkage for denoising and the selection of thresholds and threshold functions were analyzed. Comparison of denoising results was made with different thresholds and different threshold functions for pulp thickness signals. The effectiveness of the denoising method based on wavelet packet shrinkage was demonstrated by theoretical analysis and simulations

Keywords

filtering theory; paper making; process control; signal denoising; thickness control; time-frequency analysis; wavelet transforms; paper-making process; pulp thickness signal; signal denoising method; threshold function; wavelet packet shrinkage; Discrete wavelet transforms; Filters; Frequency conversion; Gaussian noise; Noise reduction; Signal analysis; Signal processing; Signal resolution; Wavelet analysis; Wavelet packets; pulp thickness; threshold; threshold function.; wavelet packet shrinkage;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Computational Sciences, 2006. IMSCCS '06. First International Multi-Symposiums on

Conference_Location

Hanzhou, Zhejiang

Print_ISBN

0-7695-2581-4

Type

conf

DOI

10.1109/IMSCCS.2006.115

Filename

4673550