·Table of Contents
·Computer Processing and Simulation

Flaw echo Location based on the Wavelet transform and Artificial Neural Network

LIU Zhenqing
Institute of Acoustics, Tongji University
Shanghai 200092, P.R.China


1. Introduction

2. Wavelet transform and feature extraction

3. Artificial neural network methods

Fig 3: architectural graph of multilayer perceptron Fig 4: architectural graph of neural net Fig 5: Hyperbolic tangent function

4. Experimental results

5. Conclusions



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