Design, implementation, and medical applications of 2-D ultrasound sparse arrays

A Ramalli, E Boni, E Roux, H Liebgott… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
An ultrasound sparse array consists of a sparse distribution of elements over a 2-D aperture.
Such an array is typically characterized by a limited number of elements, which in most …

Three-dimensional beamforming: A new enabling technology for 5G wireless networks

SM Razavizadeh, M Ahn, I Lee - IEEE Signal Processing …, 2014 - ieeexplore.ieee.org
It is anticipated that the mobile data traffic will grow 1,000 times higher from 2010 to 2020
with a rate of roughly a factor of two per year. This increasing demand for data in next …

3-D super-resolution ultrasound imaging with a 2-D sparse array

S Harput, K Christensen-Jeffries… - IEEE transactions on …, 2019 - ieeexplore.ieee.org
High-frame-rate 3-D ultrasound imaging technology combined with super-resolution
processing method can visualize 3-D microvascular structures by overcoming the diffraction …

Real-time 3-D imaging using an air-coupled ultrasonic phased-array

G Allevato, J Hinrichs, M Rutsch… - IEEE transactions on …, 2020 - ieeexplore.ieee.org
We present an air-coupled ultrasonic imaging system based on a 40-kHz 8× 8 phased-array
for 3-D real-time localization of multiple objects in the far-field. By attaching a waveguide to …

Robust adaptive beamforming via coprime coarray interpolation

Z Zheng, T Yang, WQ Wang, S Zhang - Signal Processing, 2020 - Elsevier
Recently, the coprime array has aroused wide concern due to its capability of achieving
enhanced degrees of freedom (DOF) and increased array aperture compared to uniform …

3-D imaging using row-column-addressed arrays with integrated apodization-part i: apodization design and line element beamforming

MF Rasmussen, TL Christiansen… - IEEE transactions on …, 2015 - ieeexplore.ieee.org
This paper investigates the effect of transducerintegrated apodization in row–column-
addressed arrays and presents a beamforming approach specific for such arrays. Row …

Experimental 3-D ultrasound imaging with 2-D sparse arrays using focused and diverging waves

E Roux, F Varray, L Petrusca, C Cachard, P Tortoli… - Scientific reports, 2018 - nature.com
Three dimensional ultrasound (3-D US) imaging methods based on 2-D array probes are
increasingly investigated. However, the experimental test of new 3-D US approaches is …

Development of a high-throughput microwave imaging system for concealed weapons detection

WF Moulder, JD Krieger, JJ Majewski… - … on Phased Array …, 2016 - ieeexplore.ieee.org
A video-rate microwave imaging aperture for concealed threat detection can serve as a
useful tool in securing crowded, high foot traffic environments. Realization of such a system …

3-D imaging using row–column-addressed arrays with integrated apodization—Part II: Transducer fabrication and experimental results

TL Christiansen, MF Rasmussen… - IEEE transactions on …, 2015 - ieeexplore.ieee.org
This paper demonstrates the fabrication, characterization, and experimental imaging results
of a 62+ 62 element λ/2-pitch row-column-addressed capacitive micromachined ultrasonic …

Sparse convolutional beamforming for ultrasound imaging

R Cohen, YC Eldar - IEEE transactions on ultrasonics …, 2018 - ieeexplore.ieee.org
The standard technique used by commercial medical ultrasound systems to form B-mode
images is delay and sum (DAS) beamforming. However, DAS often results in limited image …