Acoustic wave focusing in complex media using Nonlinear Time Reversal coded signal processing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F14%3A00438674" target="_blank" >RIV/61388998:_____/14:00438674 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Acoustic wave focusing in complex media using Nonlinear Time Reversal coded signal processing
Original language description
Recent ten years have seen considerable development (both in numerical and experimental aspects) of optimized signal processing methods for improving Non Destructive Testing (NDT) methods derived from Nonlinear Elastic Wave Spectroscopy (NEWS). The classical NEWS methods are supplemented and improved by new excitations having the intrinsic property of enlarging frequency analysis bandwidth and time domain scales. This is the case of TR-NEWS, recognized as a useful tool for microcracks detection of various complex samples, but also for nonlinear scatterers localization. Associate TR-NEWS experiments have been validated by the large number of simulation results supporting procedure reliability. In this contribution, we concentrated on signal processing and statistical analysis of a NEWS based microdamage imaging technique, which is believed to be a good candidate for sensitive imaging of nonlinear scattering zones.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů