The Frequency-Domain Algorithm for Ultrasonic Imaging of Complex-Shaped Objects

Abstract:

The algorithms based on Synthetic Aperture Focusing Technique are aimed at the determination of the imageries of the flaws in controlled objects. Ultrasonic imaging of complex-shaped objects requires specific algorithms which are able to take into account the complicated character of ultrasonic waves propagation. In this article, we suggested the novel frequency-domain algorithm for ultrasonic imaging of complex-shaped objects. This algorithm is based on Phase –shift migration theory and Stolt transform. The evaluation of suggested technique was done by the application of raw ultrasonic data which was obtained by using computer simulations. Derived results show that proposed algorithm is able to make accurate and precise imaging of flaws in complex-shaped objects.

• Periodical: Key Engineering Materials (Volume 769)
• Pages: 262-268
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.769.262
• Online since: April 2018
• Authors: Dmitry Dolmatov*, Dmitriy Sednev, Roman Pinchuk
• Keywords: Complex-Shaped Objects, Frequency-Domain Algorithms, Synthetic Aperture Focusing Technique, Ultrasonic Imaging, Ultrasonic Nondestructive Testing

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