Original title: Optimization of Coded Excitations with Symmetry Analysis: Formalism and Bio-NDT Applications
Authors: Dos Santos, S. ; Převorovský, Zdeněk
Document type: Papers
Conference/Event: NDT in PROGRESS /6./, Praha (CZ), 2011-10-10 / 2011-10-12
Year: 2011
Language: eng
Abstract: Ultrasonic imaging of material complexity is investigated theoretically and experimentally using the concept of symmetry analysis based signal processing applied to the nonlinear elastic wave spectroscopy (NEWS). These concepts have been tested experimentally on several complex media. Time Reversal invariance, reciprocity, and chirp coded-excitation are used to extract nonlinear signature of the tested medium.
Keywords: coded-excitation; nonlinear elastic wave spectroscopy (NEWS); symmetry analysis; time reversal (TR); TR-NEWS imaging
Project no.: CEZ:AV0Z20760514 (CEP)
Host item entry: NDT in Progress 2011, ISBN 978-80-214-4339-6

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0200808

Permalink: http://www.nusl.cz/ntk/nusl-80930


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers