Results 61 to 70 of about 519,749 (200)

Regularised Hyper Parameter Bi Level Optimisation With Continual Learning Based Deep Neural Network for Beamforming in Ultra‐Wide Band System

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
This research proposes a Regularised Hyperparameter Bilevel Optimisation with Continual Learning‐based Deep Neural Network (RHBO‐CLDNN) for beamforming in an Ultra‐Wide Band (UWB) system. The RHBO ensures the hyperparameter efficiency at both upper and lower levels, which allows DNN to fine‐tune the unique characteristics of the UWB system, which leads
Pradeep Kumar Siddanna   +2 more
wiley   +1 more source

Compact Electromagnetic Bandgap Structures for Notch Band in Ultra-Wideband Applications

open access: yes, 2010
This paper introduces a novel approach to create notch band filters in the front-end of ultra-wideband (UWB) communication systems based on electromagnetic bandgap (EBG) structures.
Jan Sykulski   +3 more
core   +1 more source

Artificial Noise Aided Directional Modulation with Multilog Frequency Diverse Array

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
The basic principle of the proposed AN‐DM‐MFDA system is to allocate AN to leakage sidelobes instead of uniformly transmitting on the two‐dimensional plane. Moreover, we theoretically derive the average bit error rates as well as the secrecy capacity between the legitimate receiver and eavesdropper in the developed system.
Ji Liu, Yue Xiao, Yong Wang, Xia Lei
wiley   +1 more source

Planar UWB Antenna with Notched Bands

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2016
The ultra-wideband (UWB) monopole antennas are designed to provide the impedance band-width of the wideband response from 2.5 to 12 GHz. To achieve single-, dual-, or triple-band notched characteristics at desirable frequencies, the electric ring ...
A. S. Rusakov
doaj  

A Substitute for Rake Receivers at Sub‐Nyquist Rates: A New Compressed Detection Approach for Digital Impulse Radio Ultra‐Wideband Communications

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
This paper proposes sparse direct demodulation (SDD), a method that replaces both OMP‐based channel estimation and the Rake receiver in an IR‐UWB coherent reception by operating directly on a small set of M$M$ Fourier coefficients extracted at sub‐Nyquist rates via the MCMW scheme.
Tina Yaacoub   +3 more
wiley   +1 more source

A Digital Twin‐Oriented Simulation Framework for Emergency Evacuation Path Optimisation in Underground Coal Mines Integrating Personnel Positioning and Environmental Monitoring

open access: yesDigital Twins and Applications, Volume 3, Issue 1, January/December 2026.
A digital twin‐driven emergency evacuation framework for underground coal mines is proposed by integrating UWB‐based real‐time personnel positioning with multi‐parameter environmental monitoring. The system synchronises methane concentration, carbon monoxide, temperature and airflow data into a dynamic virtual mine environment for continuous hazard ...
Chen Ling
wiley   +1 more source

Metamaterial-Inspired Stub-Loaded EBG Structures for Broadband PDN Noise Mitigation in High-Speed PCBs [PDF]

open access: yesEPJ Web of Conferences
Ultra-wideband (UWB) high-speed planar circuits suffer from power/ground noise due to voltage fluctuations, ground bounce, return-path discontinuities, and plane resonances, leading to electromagnetic interference (EMI) and signal integrity (SI ...
Aishwaryaa L. K.   +3 more
doaj   +1 more source

A Compact WiMAX Band-Notched UWB MIMO Antenna with High Isolation [PDF]

open access: yesRadioengineering, 2018
A multiple-input-multiple-output (MIMO) antenna is proposed for ultra-wideband (UWB) applications with high isolation capability. The proposed MIMO structure consists of two simple square monopole antennas with slotted ground plane structure with S11 ...
B. Azarm   +4 more
doaj  

High data rate transmissions in UWB system using orthogonal pulses

open access: yesTongxin xuebao, 2005
Two orthogonal pulses based on wavelet were presented,their spectrum meet FCC spectral mask for ultra wideband (UWB) system.A novel method for high data rate transmissions in UWB system was proposed.It employs a combination of pulse polarity and ...
LIANG Zhao-hui1   +2 more
doaj   +2 more sources

Vision Transformers (ViT) for Blanket-Penetrating Sleep Posture Recognition Using a Triple Ultra-Wideband (UWB) Radar System. [PDF]

open access: yesSensors (Basel), 2023
Lai DK   +9 more
europepmc   +1 more source

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