摘要
针对造纸过程的纸浆浓度检测信号,给出了一种基于小波包分析的去噪方法。讨论了小波包分析和去噪的原理、阈值和阈值函数的选取,比较了选择不同阈值以及不同阈值函数对纸浆浓度信号去噪的效果。理论分析和仿真都表明基于小波包分析的去噪方法的有效性。
A de-noise method based on wavelet packet .analysis for pulp consistency signal on papermaking process was developed in this
work. The principle of wavelet packet analysis on de-noise was analyzed. The selection of threshold and threshold function were introduced.
The de-noise efficiencies were compared with different threshold and different threshold function for pulp consistency signal. Theoretical
analysis and simulation proved the effectiveness of de-noise method based on wavelet packet analysis.
出处
《中国造纸学报》
CAS
CSCD
北大核心
2004年第1期127-131,共5页
Transactions of China Pulp and Paper
