Time reversal based news methods for localization and classification of nonlinear vibrations in bio-mechanical media

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F13%3A00423164" target="_blank" >RIV/61388998:_____/13:00423164 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/13:00210317

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Time reversal based news methods for localization and classification of nonlinear vibrations in bio-mechanical media

Popis výsledku v původním jazyce

Non Destructive Testing (NDT) and harmonic medical imaging methods have been widely developed thanks to the use of the symbiosis of Time Reversal (TR) based signal processing tools and Nonlinear Elastic Wave Spectroscopy (NEWS) methods. Statistical methods for classification, identification and localization were developed in order to detect, localize and calibrate nonlinear scatterers responsible of the structural degradation of materials. The classification of nonlinear vibrations is performed by meansof a fuzzy classification method, in which parameters are extracted from the ultrasonic response containing acoustic nonlinearities. According to the classification results, several types of nonlinearities extracted with Pulse Inversion (PI) based methods are identified, and position of the scattered sources are found. The experimental feasibility of a focused TR-NEWS method has been improved with a set-up taking into account new advanced chirpcoded excitations, and new statistical clas

Název v anglickém jazyce

Time reversal based news methods for localization and classification of nonlinear vibrations in bio-mechanical media

Popis výsledku anglicky

Non Destructive Testing (NDT) and harmonic medical imaging methods have been widely developed thanks to the use of the symbiosis of Time Reversal (TR) based signal processing tools and Nonlinear Elastic Wave Spectroscopy (NEWS) methods. Statistical methods for classification, identification and localization were developed in order to detect, localize and calibrate nonlinear scatterers responsible of the structural degradation of materials. The classification of nonlinear vibrations is performed by meansof a fuzzy classification method, in which parameters are extracted from the ultrasonic response containing acoustic nonlinearities. According to the classification results, several types of nonlinearities extracted with Pulse Inversion (PI) based methods are identified, and position of the scattered sources are found. The experimental feasibility of a focused TR-NEWS method has been improved with a set-up taking into account new advanced chirpcoded excitations, and new statistical clas

Druh

D - Stať ve sborníku

CEP obor

BB - Aplikovaná statistika, operační výzkum

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

20th International Congress on Sound & Vibration : ICSV 20

ISBN

978-616-551-682-2

ISSN

2329-3675

e-ISSN

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Počet stran výsledku

8

Strana od-do

1-8

Název nakladatele

International Institute of Acoustics and Vibration

Místo vydání

Bangkok

Místo konání akce

Bangkok

Datum konání akce

7. 7. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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