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

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

doi:10.1134/s1061830920080021

Cited by 5 publications

(1 citation statement)

References 11 publications

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“…In this paper, we consider a frequency-domain algorithm that provides correct postprocessing of ultrasonic signals of non-uniform and sparse matrix phased arrays (i.e., transducers with a nonconstant step between elements). For this purpose, we adapted the algorithm considered in [6] for the case when matrix phased arrays and transceiver mode of their operation are applied. Aforementioned algorithm is based on non-uniform fast Fourier transform [7] application.…”

Section: Experimental Partmentioning

confidence: 99%

Ultrasonic testing via three-dimensional post-processing of non-uniform matrix phased array data

Dolmatov

2023

MATEC Web Conf.

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The tomography based on post-processing of phased array signals is of great potential for ultrasonic testing to accurately size the detected flaws. The use of matrix phased arrays in ultrasound tomography can provide three-dimensional data both at one measuring position and during scanning. However, application of these transducers implies processing of a large amount of data, which affects the data processing time. In this study, the post-processing frequency-domain algorithm based on the application of non-uniform fast Fourier transform was experimentally verified. This algorithm is allowed to restore correct results when approaches of optimised set of signals acquisition (sparse and non-uniform phased arrays) are applied. The experimental verification showed that the developed algorithm yields high-resolution results with a high signal-to-noise ratio.

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Section: Experimental Partmentioning

confidence: 99%

Ultrasonic testing via three-dimensional post-processing of non-uniform matrix phased array data

Dolmatov

2023

MATEC Web Conf.

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Determination of a Configuration for Sparse Matrix Phased Array Using Simulated Annealing for Imaging in Ultrasonic NDT

Dolmatov

2024

Russ Phys J

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Digital Coherent Signal Processing with Calculations in Frequency Domain for Solving Ultrasound Tomography Problems Using Matrix Antenna Arrays with Nonequidistant Arrangement of Elements

Dolmatov

Ermoshin

2022

Russ J Nondestruct Test

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

Cited by 5 publications

References 11 publications

Ultrasonic testing via three-dimensional post-processing of non-uniform matrix phased array data

Ultrasonic testing via three-dimensional post-processing of non-uniform matrix phased array data

Determination of a Configuration for Sparse Matrix Phased Array Using Simulated Annealing for Imaging in Ultrasonic NDT

Digital Coherent Signal Processing with Calculations in Frequency Domain for Solving Ultrasound Tomography Problems Using Matrix Antenna Arrays with Nonequidistant Arrangement of Elements

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