Results 41 to 50 of about 1,180,225 (167)

Efficient 2D adaptive beamforming algorithm based on sparse array optimisation

The 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.
Chaoyu Wang, Can Zhu, Chunlin Chen, Hongtao Li   +3 more
doaj   +1 more source

Recent Advances in Programmable Metasurfaces and Meta‐Devices

Advanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao, Chong He, Nan Wang, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source

Review on Deep Learning‑Based Adaptive Beamforming for Array Antennas

Shuju Caiji Yu Chuli
With the increasing of array antennas and the growing complexity of anti-jamming， traditional adaptive beamforming methods often suffer from high computational complexity. Deep learning， with its powerful data-driven capabilities， offers a novel approach
XU Zheng, PAN Zihao, WANG Ning, GUO Daoxing   +3 more
doaj   +1 more source

Physics Informed Generative Surrogate Learning for Full Wave Validated Real Time Beamforming in Programmable Metasurfaces

Advanced Electronic Materials, EarlyView.
A physics‐guided generative surrogate framework is developed for programmable metasurface beamforming. Mode‐conditioned binary state generation, aperture‐physics prediction, routed residual correction, NSGA‐II optimization, and CST validation are combined to support fast candidate screening and full‐wave beam refinement across single‐beam, dual‐beam ...
Wenqian Liu, Weidong Chen, Chang Chen, Xiang Zhang, Sensong An   +4 more
wiley   +1 more source

Adaptive minimum symbol error rate beamforming assisted receiver for quadrature amplitude modulation systems

, 2006
An adaptive beamforming assisted receiver is proposed for multiple antenna aided multiuser systems that employ bandwidth efficient quadrature amplitude modulation (QAM).
Du, H.Q, Hanzo, L., Chen, S.
core   +1 more source

Low-Complexity Robust Capon Beamforming Based on Reduced-Rank Technique

Journal of Electrical and Computer Engineering, 2015
Existing robust Capon beamformers achieve robustness against steering vector errors at a high cost in terms of computational complexity. Computationally efficient robust Capon beamforming approach based on the reduced-rank technique is proposed in this ...
Zaifang Xi, Xiao-feng Wu, Shuyue Wu, Zhijun Tang, Shigang Hu   +4 more
doaj   +1 more source

Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection

Archaeological Prospection, EarlyView.
ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken, Philipp Held, Jacob Geersen, Marcel Bradtmöller, Peter Feldens, Jens Schneider v. Deimling   +5 more
wiley   +1 more source

Multi-Beam Radar Communication Integrated System Design

Information, 2023
In this paper, we propose a multi-beam integrated radar and communication scheme using phased-array antenna, in which the same LFM-BPSK integrated waveform is used for both the radar and the communication beams.
Hao Ma, Jun Wang, Xin Sun, Wenxin Jin
doaj   +1 more source

Flexible wearable electronics for cardiovascular monitoring from surface signals to deep physiological insights

FlexMat, EarlyView.
This review organizes flexible wearable electronics for cardiovascular monitoring into four interconnected information layers: surface electrophysiology, hemodynamic sensing, vascular imaging, and biofluid biomarker analysis. This framework clarifies how electrical rhythm, vascular loading, structural and flow‐related features, and biochemical states ...
Qiao Chen, Hongwen Chen, Yuanyuan Li, Pingan Yang, Rui Li, Zhihao Zhou   +5 more
wiley   +1 more source

A Robust Capon Beamforming Approach for Sparse Array Based on Importance Resampling Compressive Covariance Sensing

IEEE Access, 2019
Reconstructing the interference-plus-noise covariance matrix instead of searching for the optimal diagonal loading factor for the sample covariance matrix is a good method for calculating the adaptive beamforming coefficients.
Yuguan Hou, Hefu Gao, Qinghong Huang, Jinzi Qi, Xingpeng Mao, Cunfeng Gu   +5 more
doaj   +1 more source