Results 21 to 30 of about 52,166 (244)

An Empirical Study on Transmission Beamforming for Ultrasonic Guided-Wave Based Structural Health Monitoring

open access: yesSensors, 2020
The development of reliable structural health monitoring techniques is enabling a healthy transition from preventive to condition-based maintenance, hence leading to safer and more efficient operation of different industries. Ultrasonic guided-wave based
Sergio Cantero-Chinchilla   +4 more
doaj   +1 more source

Deep Learning Based Decentralized Beamforming Methods for Multi-Antenna Interference Channels

open access: yesIEEE Access, 2023
This paper develops deep learning (DL) based beamforming approaches for multi-antenna interference channels where several base stations (BSs) individually optimize their own beamforming vectors in a decentralized manner.
Minseok Kim   +3 more
doaj   +1 more source

Precision planter monitoring system based on mobile communication network

open access: yesIET Networks, EarlyView., 2022
Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley   +1 more source

Manifold sparse beamforming [PDF]

open access: yes2013 5th IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), 2013
We consider the minimum variance distortionless response (MVDR) beamforming problems where the array covariance matrix is rank deficient. The conventional approach handles such rank-deficiencies via diagonal loading on the covariance matrix. In this setting, we show that the array weights for optimal signal estimation can admit a sparse representation ...
Baran Gozcu   +2 more
openaire   +2 more sources

Beamforming Technologies for Ultra-Massive MIMO in Terahertz Communications

open access: yesIEEE Open Journal of the Communications Society, 2023
Terahertz (THz) communications with a frequency band 0.1 – 10 THz are envisioned as a promising solution to future high-speed wireless communication.
Boyu Ning   +7 more
doaj   +1 more source

Near-Field Beamforming Algorithms for UAVs

open access: yesSensors, 2023
This study presents three distributed beamforming algorithms to address the challenges of positioning and signal phase errors in unmanned aerial vehicle (UAV) arrays that hinder effective beamforming.
Yinan Zhang   +5 more
doaj   +1 more source

jdassink/beamforming: v1.0.0

open access: yes, 2023
<p><strong>Full Changelog</strong>: https://github.com/jdassink/beamforming/commits/beamforming</p ...
Jelle Assink
core   +1 more source

Advanced Hybrid Beamforming Technique in MU-MIMO Systems

open access: yesApplied Sciences, 2020
This paper proposes a high performance wireless commmunication technology in MU-MIMO systems. The millimeter wave (mmWave) communication technology was considered for the future wireless communication systems such as the fifth-generation new radio (5G NR)
Seong-Joon Shim   +5 more
doaj   +1 more source

Adaptive beamforming for large arrays in satellite communications systems with dispersed coverage [PDF]

open access: yes, 2011
Conventional multibeam satellite communications systems ensure coverage of wide areas through multiple fixed beams where all users inside a beam share the same bandwidth. We consider a new and more flexible system where each user is assigned his own beam,
Larue de Tournemine, Cécile   +5 more
core   +1 more source

CMA and soft decision-directed scheme for semi-blind beamforming of QAM systems

open access: yes, 2008
We propose a semi-blind adaptive beamforming approach for wireless systems that employ high-throughput quadrature amplitude modulation signalling schemes.
W. Yao   +5 more
core   +2 more sources

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