A Method of Tools AE Signal Feature Extraction Based on Wavelet Packet Analysis
The paper developed a method of tools AE signal feature extraction based on wavelet packet analysis, we used wavelet packet analysis to decompose acoustic emission signals for different frequency range of the signal components. The will occupy of the main energy of AE signal frequency range is extracted as the recognition feature vector of tool wear. The method has higher accuracy according to experiments.
L. S. Guo et al., "A Method of Tools AE Signal Feature Extraction Based on Wavelet Packet Analysis", Key Engineering Materials, Vols. 474-476, pp. 189-194, 2011