Application of Nonuniform Fourier Transform to Solving Ultrasonic Tomography Problems with Antenna Arrays

D. O. Dolmatov, N. I. Ermoshin, D. A. Koneva, D. A. Sednev

Research output: Contribution to journalArticlepeer-review

Abstract

Abstract: In ultrasonic tomography that employs the technique of digital focusing with an antenna (DFA), the problem of increasing the inspection performance is inextricably linked with the problem of increasing the speed of producing synthesized images. This problem can be effectively solved by concurrently using several approaches aimed at increasing the image production speed. In the framework of this paper, we consider the algorithm of nonuniform fast Fourier transform (NUFFT). The NUFFT can be used in the existing computationally efficient spatiotemporal processing algorithms with calculations in the frequency domain and is capable of correctly reconstructing synthesized images with sparse and non-uniform antenna arrays (AAs). The experimental data obtained indicate the ability of the NUFFT-based algorithm to restore synthesized images with high resolution.

Original languageEnglish
Pages (from-to)603-610
Number of pages8
JournalRussian Journal of Nondestructive Testing
Volume56
Issue number8
DOIs
Publication statusPublished - 1 Aug 2020

Keywords

  • algorithms of spatiotemporal processing with calculations in frequency domain
  • antenna arrays
  • digital focusing with antenna
  • nonuniform fast Fourier transform
  • ultrasonic tomography

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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