Results 41 to 50 of about 23,679 (186)
Cross-layer Resource Allocation Scheme for Multi-band High Rate UWB Systems [PDF]
, 2009 In this paper, we investigate the use of a cross-layer allocation mechanism for the high-rate ultra-wideband (UWB) systems. The aim of this paper is twofold.
Crussière, Matthieu +2 more
core +8 more sources
Advanced Functional Materials, Volume 36, Issue 6, 19 January 2026.A wideband tunable electrochromic device with dynamic thermal emissivity control is demonstrated. The system enables adaptive heat regulation via electrochemically modulated silver deposition, achieving efficient cooling and heating states. The flexible design ensures mechanical robustness under bending conditions, making it promising for portable and ...
Jiawei Liang +10 more
wiley +1 more source
Skin‐Like Airflow Odometry for Micro Aerial Vehicles Based on Distributed Thermal Anemometers
Advanced Intelligent Systems, Volume 8, Issue 1, January 2026.A novel bioinspired skin‐like airflow odometry system for micro aerial vehicles employs distributed thermal anemometers to enable motion estimation in GNSS‐denied environments. Computational fluid dynamics simulation validates sensor deployment feasibility, while a transformer‐enhanced gated recurrent unit network extracts high‐precision airflow ...
Weicheng Di +7 more
wiley +1 more source
Study on propagation properties of UWB signal waveform
Tongxin xuebao, 2005 Investigating the propagation properties of Ultra-wideband （UWB） were the essential topics in UWB channel theory.Based on Fourier transformation,Various UWB pulse waveform with indoor reflection,refraction and diffraction is studied.Moreover,a novel ...
LIU Yuan-jian, ZHANG Ye-rong
doaj +2 more sources
Engineering Reports, 2020 Reduced lightweight microstrip patch antennas have attracted considerable attention in ultra‐wideband (UWB) applications. In this article, a novel modified circular ultra‐wideband monopole antenna with dual‐band notch characteristics is proposed.
Sumeet Singh Bhatia +3 more
doaj +1 more source
Implementation and Investigation of a Compact Circular Wide Slot UWB Antenna with Dual Notched Band Characteristics using Stepped Impedance Resonators [PDF]
, 2012 A coplanar waveguide (CPW) fed ultra-wideband (UWB) antenna with dual notched band characteristics is presented in this paper. The circular wide slot and circular radiation patch are utilized to broaden the impedance bandwidth of the UWB antenna.
Tao Jiang, Wenxing Li, Yingsong Li
core +1 more source
IET 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
Miniaturised ultra‐wideband circular polarised koch fractal crossed dipole array
IET Microwaves, Antennas & PropagationUltra‐wideband (UWB) systems utilise a broad frequency spectrum to achieve high data transmission rates and enhanced precision, creating a demand for specialised UWB antennas.
Won Min Choi +5 more
doaj +1 more source
Improvement of strength and water absorption of Interlocking Compressed Earth Bricks (ICEB) with addition of Ureolytic Bacteria (UB) [PDF]
, 2018 Interlocking Compressed Earth Brick (ICEB) are cement stabilized soil bricks that allow for dry stacked construction. This characteristic resulted to faster the process of building walls and requires less skilled labour as the bricks are laid dry and ...
J.M., Irwan +3 more
core +1 more source
UAV‐Radar‐Based Through‐Wall Human Activity Recognition via Frequency‐Selective STFT‐ResNet
Electronics Letters, Volume 62, Issue 1, January/December 2026.This letter presents a UAV‐mounted radar system for through‐wall human activity recognition in high‐rise buildings. By combining STFT‐based spectrogram processing with a frequency‐selective ResNet18 network, the method effectively filters noisy subcarriers and classifies activities with high accuracy. Experimental results demonstrate 98.08% recognition
Chenghao Wang +4 more
wiley +1 more source