A Method of Tools AE Signal Feature Extraction Based on Wavelet Packet Analysis

Lan Guo; Nai Qiang Dong; Wei Tian; Fang Zhong Zhang; Cai Xiao Li

doi:10.4028/www.scientific.net/kem.474-476.189

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JOURNAL ARTICLE

A Method of Tools AE Signal Feature Extraction Based on Wavelet Packet Analysis

Lan Guo Nai Qiang Dong Wei Tian Fang Zhong Zhang Cai Xiao Li

Year: 2011 Journal: Key engineering materials Vol: 474-476 Pages: 189-194 Publisher: Trans Tech Publications

DOI: 10.4028/www.scientific.net/kem.474-476.189

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Abstract

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.

Keywords:

Wavelet Wavelet packet decomposition Acoustic emission SIGNAL (programming language) Feature extraction Pattern recognition (psychology) Energy (signal processing) Feature (linguistics) Network packet Computer science Range (aeronautics) Signal processing Acoustics Artificial intelligence Wavelet transform Speech recognition Materials science Mathematics Physics Telecommunications Statistics

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Ultrasonics and Acoustic Wave Propagation

Physical Sciences → Engineering → Mechanics of Materials

Machine Fault Diagnosis Techniques

Physical Sciences → Engineering → Control and Systems Engineering

Advanced machining processes and optimization

Physical Sciences → Engineering → Mechanical Engineering

A Method of Tools AE Signal Feature Extraction Based on Wavelet Packet Analysis

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Citation History

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