Acoustic wave focusing in complex media using Nonlinear Time Reversal coded signal processing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F14%3A00223093" target="_blank" >RIV/68407700:21340/14:00223093 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388998:_____/14:00438518

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Acoustic wave focusing in complex media using Nonlinear Time Reversal coded signal processing

Popis výsledku v původním jazyce

Nonlinear Time Reversal in systems having localized nonlinearities has been demonstrated in several complex media: acoustic waves through materials with defects[1], and recently for electromagnetic signals in systems containing a passive harmonic generating nonlinear element[2]. 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). Using symmetry invariance, nonlinear Time Reversal (TR) and reciprocity properties, the classical NEWS methods are supplemented and improved by new excitations having the intrinsic property of enlarging frequency analysis bandwidth and time domain scales[3]. 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

Název v anglickém jazyce

Acoustic wave focusing in complex media using Nonlinear Time Reversal coded signal processing

Popis výsledku anglicky

Nonlinear Time Reversal in systems having localized nonlinearities has been demonstrated in several complex media: acoustic waves through materials with defects[1], and recently for electromagnetic signals in systems containing a passive harmonic generating nonlinear element[2]. 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). Using symmetry invariance, nonlinear Time Reversal (TR) and reciprocity properties, the classical NEWS methods are supplemented and improved by new excitations having the intrinsic property of enlarging frequency analysis bandwidth and time domain scales[3]. 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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JS - Řízení spolehlivosti a kvality, zkušebnictví

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

e-Journal of NDT

ISSN

1435-4934

e-ISSN

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Svazek periodika

2014

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

31

Strana od-do

1-31

Kód UT WoS článku

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EID výsledku v databázi Scopus

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