Application of Wavelet Transform to Process Operating Region Recognition.
Zhong Zhao, Yihui Jin, Jingchun Wang · JOURNAL OF CHEMICAL ENGINEERING OF JAPAN · 2000
Based on analysis of wavelet transform, we studied how to extract the frequency band and multi-scale qualitative features of process measurement signals and proved that the extracted features could describe the process operating region stably and completely. Combining the pattern inductive algorithm, a new method of process operating region recognition based on wavelet transform is proposed. The theoretical analysis and real application results have verified that the proposed method is feasible and effective.