Optimal Design of Sparse Matrix Phased Array Using Simulated Annealing for Volumetric Ultrasonic Imaging with Total Focusing Method

The total focusing method (TFM) is often considered to be the ‘gold standard’ for ultrasonic imaging in the field of nondestructive testing. The use of matrix phased arrays as probes allows for high-resolution volumetric TFM imaging. Conventional TFM imaging involves the use of full matrix capture (...

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Vydané v:Sensors (Basel, Switzerland) Ročník 24; číslo 6; s. 1856
Hlavní autori: Dolmatov, Dmitry Olegovich, Zhvyrblya, Vadim Yurevich
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Switzerland MDPI AG 01.03.2024
MDPI
Predmet:
Annealing
Arrays
Genetic algorithms
matrix phased arrays
Methods
Nondestructive testing
Optimization
optimization task
sparse phased arrays
Sparsity
total focusing method
ultrasonic imaging
ultrasonic nondestructive testing
Ultrasound imaging
sparse array optimization
simulated annealing
total focusing method
optimization task
stochastic optimization methods
matrix phased arrays
sparse phased arrays
ultrasonic imaging
ultrasonic nondestructive testing
ISSN:1424-8220, 1424-8220
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Shrnutí:The total focusing method (TFM) is often considered to be the ‘gold standard’ for ultrasonic imaging in the field of nondestructive testing. The use of matrix phased arrays as probes allows for high-resolution volumetric TFM imaging. Conventional TFM imaging involves the use of full matrix capture (FMC) for ultrasonic signals acquisition, but in the case of a matrix phased array, this approach is associated with a huge volume of data to be acquired and processed. This severely limits the frame rate of volumetric imaging with 2D probes and necessitates the use of high-end equipment. Thus, the aim of this research was to develop a novel design method for determining the optimal sparse 2D probe configuration for specific conditions of ultrasonic imaging. The developed approach is based on simulated annealing and involves implementing the solution of the sparse matrix phased array layout optimization problem. In order to implement simulated annealing for the aforementioned task, its parameters were set, the acceptance function was introduced, and the approaches were proposed to compute beam directivity diagrams of sparse matrix phased arrays in TFM imaging. Experimental studies have shown that the proposed approach provides high-quality volumetric imaging with a decrease in data volume of up to 84% compared to that obtained using the FMC data acquisition method.
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ISSN:1424-8220
1424-8220
DOI:10.3390/s24061856