Deep learning assisted sparse array ultrasound imaging. [PDF]
PLoS ONE, 2023 This study aims to restore grating lobe artifacts and improve the image resolution of sparse array ultrasonography via a deep learning predictive model.
Baiyan Qi +8 more
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Genetic Algorithm for Sparse Optimization of Mills Cross Array Used in Underwater Acoustic Imaging [PDF]
Journal of Marine Science and Engineering, 2022 Underwater acoustic imaging employs a special form of array which includes numerous transducer elements to achieve beamforming. Although a large-scale array can bring high imaging resolution, it will also cause difficulties in hardware complexity and ...
Duo Teng +4 more
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Sparse convolutional array for DOA estimation
EURASIP Journal on Advances in Signal Processing, 2022 Array signal processing plays an important role in many areas. Besides the Uniform Linear Array, there are many sparse array that have been proposed, for example, Minimum-redundancy array, Co-prime array, nested array, etc.
Zikai Wang +4 more
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The sparse array elements selection in sparse imaging of circular-array photoacoustic tomography
Journal of Innovative Optical Health Sciences, 2022 Photoacoustic imaging (PAI) has been developed, and photoacoustic computed tomography (PACT) is widely used for in vivo tissue and mouse imaging. Simulated annealing (SA) algorithm solves optimization problems, and compressed sensing (CS) recovers sparse
Zezheng Qin +4 more
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Partial Angular Sparse Representation Based DOA Estimation Using Sparse Separate Nested Acoustic Vector Sensor Array [PDF]
Sensors, 2018 In this paper, the issue of direction of arrival (DOA) estimation is discussed, and a partial angular sparse representation (SR)-based method using a sparse separate nested acoustic vector sensor (SSN-AVS) array is developed.
Jianfeng Li, Zheng Li, Xiaofei Zhang
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Colocated MIMO Radar Waveform-Array Joint Optimization for Sparse Array. [PDF]
Sensors (Basel), 2023 Colocated multiple-input multiple-output (MIMO) radar can transmit a group of distinct waveforms via its colocated transmit antennas and the waveform diversity leads to several advantages in contrast to conventional phased-array radar. The performance depends highly on the degrees available, and element spacing can be deemed as another source of ...
Yin J, Ma R, Lin M, Zhou S.
europepmc +4 more sources
Improved Sparrow Search Algorithm for Sparse Array Optimization [PDF]
Modelling and Simulation in EngineeringThe synthesis problem of the number of array elements, array element spacing, and array formation is widely concerned in sparse array optimization. The local optimum problem is still an urgent problem to be solved in the existing optimization algorithms.
Juanjuan Ji +5 more
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A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array. [PDF]
Micromachines (Basel), 2021 Zhang T +6 more
europepmc +3 more sources
Ultrasonic Phased Array Sparse-TFM Imaging Based on Sparse Array Optimization and New Edge-Directed Interpolation [PDF]
Sensors, 2018 The ultrasonic phased array total focusing method (TFM) has the advantages of full-range dynamic focusing and high imaging resolution, but the problem of long imaging time limits its practically industrial applications.
Hongwei Hu +3 more
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Ternary redundant sparse linear array design with high robustness [PDF]
Xibei Gongye Daxue Xuebao, 2023 Sparse linear array is prone to element failure affected by environmental and other factors in practical application, resulting in the decline of degrees of freedom and the attenuation or even failure of direction of arrival (DOA) estimation performance.
HOU Shuhua +4 more
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