Title :
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.
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;
Conference_Titel :
Computer and Computational Sciences, 2006. IMSCCS '06. First International Multi-Symposiums on
Conference_Location :
Hanzhou, Zhejiang
Print_ISBN :
0-7695-2581-4
DOI :
10.1109/IMSCCS.2006.115
