Selective focusing through target identification and experimental acoustic signature extraction: Through-aberration experiments
Langue
EN
Article de revue
Ce document a été publié dans
Ultrasonics. 2025-07-01, vol. 151, p. 107605
Résumé en anglais
In the first part of this work (Rodriguez et al. 2016), the selective focusing through identification and experimental acoustic signature extraction (SelF-EASE) method was presented, and its potential for accurate ultrasound ...Lire la suite >
In the first part of this work (Rodriguez et al. 2016), the selective focusing through identification and experimental acoustic signature extraction (SelF-EASE) method was presented, and its potential for accurate ultrasound focusing was assessed via numerical experiments. In the second part of this work, the inversion procedure and focusing signal extraction are improved in terms of reliability and computation time, and experimental results are presented. First, the improved signature extraction process is evaluated with two experimental aluminum samples. Second, the improved focusing process is experimentally performed on a target immersed in water behind an unknown aberration layer. Compared with the time-of-flight methods, the measured intensity fields greatly improve in terms of accuracy without any further knowledge of the medium.< Réduire
Mots clés en anglais
Wave focusing
Topological imaging
Inverse filtering
Phase aberration
Focused ultrasound
Unités de recherche