Results 1 to 10 of about 27,142 (205)

Robust adaptive beamforming based on covariance matrix reconstruction with annular uncertainty set constraints. [PDF]

open access: yesPLoS ONE
A robust adaptive beamforming method based on the interference covariance matrix reconstruction with annular uncertainty set constraints is proposed to address the issues of covariance matrix mismatch and steering vector mismatch caused by the distortion
Gaoxiang Xing   +3 more
doaj   +2 more sources

Adaptive Ultrasound Beamforming Using Deep Learning [PDF]

open access: yesIEEE Transactions on Medical Imaging, 2020
Biomedical imaging is unequivocally dependent on the ability to reconstruct interpretable and high-quality images from acquired sensor data. This reconstruction process is pivotal across many applications, spanning from magnetic resonance imaging to ultrasound imaging.
Ben Luijten   +6 more
openaire   +6 more sources

Adaptive Array Beamforming Using a Chaotic Beamforming Algorithm [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2016
The Chaotic beamforming adaptive algorithm is new adaptive method for antenna array’s radiation pattern synthesis. This adaptive method based on the optimization of the Least Mean Square algorithm using Chaos theory enables fast adaptation of antenna ...
Ana Jovanović   +2 more
doaj   +2 more sources

Iterative robust adaptive beamforming

open access: yesEURASIP Journal on Advances in Signal Processing, 2017
The minimum power distortionless response beamformer has a good interference rejection capability, but the desired signal will be suppressed if signal steering vector or data covariance matrix is not precise. The worst-case performance optimization-based
Yang Li, Hong Ma, Li Cheng
doaj   +2 more sources

Robust adaptive beamforming algorithm

open access: yesTongxin xuebao, 2009
The performance of least mean squares(LMS) algorithm degraded dramatically in the presence of even slight steering vector mismatches.In order to overcome the shortage,a novel robust adaptive beamforming algorithm based on the variable diagonal loading ...
SONG Xin   +3 more
doaj   +3 more sources

Closed-Loop Wireless Power Transfer With Adaptive Waveform and Beamforming: Design, Prototype, and Experiment

open access: yesIEEE Journal of Microwaves, 2023
A closed-loop far-field wireless power transfer (WPT) system with adaptive waveform and beamforming using limited feedback is designed, prototyped, and experimented.
Shanpu Shen, Junghoon Kim, Bruno Clerckx
doaj   +1 more source

A Hybrid Adaptive Beamforming Algorithm for SINR Enhancement in Massive MIMO Systems [PDF]

open access: yesRadioengineering, 2023
With the extreme density of devices and fast change of their directions in massive MIMO networks, a fast adaptive beamforming algorithm is required to provide high directivity and an enhanced signal-to-interference and noise ratio (SINR).
H. Manai   +2 more
doaj  

Neighborhood Singular Value Decomposition Filter and Application in Adaptive Beamforming for Coherent Plane-Wave Compounding

open access: yesApplied Sciences, 2020
Coherent plane-wave compounding (CPWC) is widely used in medical ultrasound imaging, in which plane-waves tilted at multiple angles are used to reconstruct ultrasound images. CPWC helps to achieve a balance between frame rate and image quality.
Shuai Feng   +4 more
doaj   +1 more source

UTHM water quality classification based on sub index [PDF]

open access: yes, 2020
River or stream at their source is unpolluted, but as water flow downstream, the river or lake is receiving point and non-point pollutant source. Ammoniacal nitrogen (NH3- N) and suspended solids (SS) strongly influences the dynamics of the dissolved ...
Johari, A. H.   +2 more
core   +1 more source

Fast Wideband Beamforming Using Convolutional Neural Network

open access: yesRemote Sensing, 2023
With the wideband beamforming approaches, the synthetic aperture radar (SAR) could achieve high azimuth resolution and wide swath. However, the performance of conventional adaptive wideband time-domain beamforming is severely affected as the received ...
Xun Wu   +4 more
doaj   +1 more source

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