Ultrasonic wavefield inversion and migration in complex heterogeneous structures: 2D numerical imaging and nondestructive testing experiments

•Large-scale features can be recovered through low-frequency waveform inversion.•Small-scale defects are effectively detected through high-frequency migration.•The procedure succeeds in scenarios where the defect lies in difficult backgrounds.•We provide various error analyses toward the use of this...

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Veröffentlicht in:	Ultrasonics 2018-01, Vol.82, p.357-370
Hauptverfasser:	Nguyen, Luan T., Modrak, Ryan T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Full-waveform inversion Nondestructive testing Reverse-time migration Ultrasonics
Online-Zugang:	Volltext
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