Results 1 to 10 of about 2,236 (212)
Micromachines, 2022 Sparse antenna arrays based on subarrays have more and more broad application prospects for the limitation of array space, real-time algorithm and hardware costs.
Jian Yang
exaly +4 more sources
Applied Sciences (Switzerland), 2021 In this study, the propagation time and attenuation rate distributions of each sound source grid point (200 × 200) to a microphone of an arbitrary position across the shear layer, which are required for beamforming, were reconstructed by the reduced ...
Yuta Ozawa, Kumi Nakai, Yuji Saito
exaly +4 more sources
Real-Time 3D Ultrasound Imaging with an Ultra-Sparse, Low Power Architecture. [PDF]
Adv Healthc MaterThis article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Marcus C +9 more
europepmc +2 more sources
Efficient 2D adaptive beamforming algorithm based on sparse array optimisation
Journal of Engineering, 2019 In this study, a 2D adaptive beamforming algorithm for sparse array is proposed. Firstly, a signal model based on matrix completion theory for adaptive beamforming in sparse array is established, which is proved to satisfy null space property.
Chunlin Chen, Hongtao Li
exaly +3 more sources
Remote Sensing, 2023 Distributed array radar achieves high angular resolution and measurement accuracy, which could provide a solution to suppress digital radio frequency memory (DRFM) repeater jamming.
Bowen Han +4 more
doaj +2 more sources
Robust Reverberation Suppression Method Based on Alternating Projections [PDF]
SensorsBy leveraging the high correlation between multi-ping echo data, low-rank and sparse decomposition methods are applied for reverberation suppression.
Xiongwei Xiao, Feng Xu, Juan Yang
doaj +2 more sources
Journal of Applied Science and Engineering, 2021 Beamforming at millimeter-wave (mmWave) band, promises to significantly support 5G networks in achieving their performance goals. The conventional digital beamforming uses a separate RF chain for each antenna element, while it leads to high cost and ...
Abdul Haq Nalband +2 more
doaj +1 more source
Comparison of robust Capon beamforming based on weighted sparse constraints
上海师范大学学报. 自然科学版, 2020 The performance of several Capon adaptive beamforming algorithms which used the weighted sparse constraints were analyzed and compared.These algorithms using the sparse distribution characteristics of the antenna array gain would suppress side lobes ...
LIN Zhen, LI Li, WEI Shuang, LIANG Yan
doaj +1 more source
Sparse deconvolution beamforming with non-negative L1−αL2 regularization for acoustic source localization [PDF]
JASA Express LettersThis letter proposed a sparse deconvolution localization method (FFT-L1ML2) driven by non-convex L1−αL2 regularization that more closely approximates the ideal L0 norm.
Zhaohui Du +4 more
doaj +1 more source
Sensors, 2023 Unlike conventional phased array (PA), frequency diversity array (FDA) can perform the beampattern synthesis not only in an angle dimension but also in a range dimension by introducing an additional frequency offset (FO) across the array aperture, thus ...
Yanhong Xu, Xiao Huang, Anyi Wang
doaj +1 more source