impact of resynchronization errors on the ...
Type de document :
Autre communication scientifique (congrès sans actes - poster - séminaire...): Communication dans un congrès avec actes
Titre :
impact of resynchronization errors on the quality localization of defects in reverberant plates
Auteur(s) :
Bouchakour, Omar [Auteur]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Chehami, Lynda [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]
Moulin, Emmanuel [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Chehami, Lynda [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]
Moulin, Emmanuel [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]
Titre de la manifestation scientifique :
Anglo-French Physical Acoustics Conference 2024 (AFPAC)
Organisateur(s) de la manifestation scientifique :
Institute of Physics (IOP)
Ville :
Luss
Pays :
Royaume-Uni
Date de début de la manifestation scientifique :
2024-01-17
Mot(s)-clé(s) en anglais :
post-processing resynchronization
resynchronization error
contrast
localization images
resynchronization error
contrast
localization images
Discipline(s) HAL :
Sciences de l'ingénieur [physics]
Résumé en anglais : [en]
In the context of structural health monitoring (SHM), recent research has been carried out to take advantage of the correlation of ambient noise to locate and characterize defects in reverberant plates. The back-propagation-based ...
Lire la suite >In the context of structural health monitoring (SHM), recent research has been carried out to take advantage of the correlation of ambient noise to locate and characterize defects in reverberant plates. The back-propagation-based imaging algorithms developed in this way require that the signals recorded by the sensors of the control network be perfectly synchronized. This implies that these sensors must be linked to a common clock to ensure their synchronization, which generates significant complexity of the monitoring system in the case of embedded applications. Post-processing resynchronization is a promising solution to deal with this problem. However, in less favorable cases and especially in the presence of additive noise this resynchronization could be made with some errors. In this work, we are interested in quantifying statistically the degradation of the contrast of localization images as a function of the resynchronization error. The obtained results are promising and can be of great interest for embedded applications.Lire moins >
Lire la suite >In the context of structural health monitoring (SHM), recent research has been carried out to take advantage of the correlation of ambient noise to locate and characterize defects in reverberant plates. The back-propagation-based imaging algorithms developed in this way require that the signals recorded by the sensors of the control network be perfectly synchronized. This implies that these sensors must be linked to a common clock to ensure their synchronization, which generates significant complexity of the monitoring system in the case of embedded applications. Post-processing resynchronization is a promising solution to deal with this problem. However, in less favorable cases and especially in the presence of additive noise this resynchronization could be made with some errors. In this work, we are interested in quantifying statistically the degradation of the contrast of localization images as a function of the resynchronization error. The obtained results are promising and can be of great interest for embedded applications.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Source :