·Home
·Table of Contents
·Methods and Instrumentation

Estimation of Differences in Event Arrival Times Through Wavelet Transform Techniques

J. E. Ruzzante
Laboratorio de Emisiones Acusticas - Centro Atomico Constituyentes - CNEA - Argentine
E.P.Serrano
Escuela de Ciencia y Tecnologia - Universidad Nacional de San Martin -Argentine
Email: eduser@dm.uba.ar
Contact


Abstract:

1. Introduction

2. DESCRIPTION OF THE PROBLEM

3. UNDECIMATED DISCRETE WAVELET TRANSFORM

4. ESTIMATION OF SEPARATION TIMES.

5. EXAMPLES

6. CONCLUSIONS

References:

  1. G. Leisk, A. Seigal, 'Digital Computer Algorithms to Calculate Ultrasonic Wave Speed', Materials Evaluation, Jul. 1996.
  2. ] S. Ziola, M. Gorman, 'Source Location in Thin Plates Using Cross - Correlation', J. Acoust. Soc. Am. 90, 1991.
  3. M. Peterson, 'A Method for Increased Accuracy of a Measurement of Relative Phase Velocity', Ultrasonics 35, 1997.
  4. B. Audoin, J. Roux, 'An Innovative application of the Hilbert Transform to time delay estimation of overlapped ultrasonic echoes', Ultrasonics 34, 1996.
  5. C. E. D' Attellis, L. V. Perez, D. Rubio, J. E. Ruzzante, 'Parameter Estimation in Acoustic Emission Signals', Journal of Acoustic Emission 10, 1992.
  6. Y. Meyer, Wavelets, Algorithms & Applicattions , SIAM, Philadelphia, 1993.
  7. S. Mallat, A Wavelet Tour of Signal Processing , Acadedmic Press, San Diego, 1998.
  8. E. Serrano and M. Fabio, 'The Undecimated Wavelet Transform', in Wavelet Theory and Harmonic Analys is in Applied Sciences , Ed. Birkhauser, Boston, 1997.

© AIPnD , created by NDT.net |Home|    |Top|