Wavelet Analysis of Ultrasonic Lamb Waves Excited by Pulsed Laser in a Composite Plate

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1999
Authors
Han, Jun-Bo
Cheng, Jian-Chun
Berthelot, Yves
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Altmetrics
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The Wavelet Transform (WT) is a relatively new technique for processing transient signals with time varying spectra. An outstanding property of the WT is the built-in self-adjusting (zooming) window structure that helps to resolve high- and low-frequency transient components effectively by employing adequate resolutions. This zooming property of the WT is extremely useful to identify the different spectral characteristics of transient Lamb waveforms [1–3].

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