Results 91 to 100 of about 115,454 (254)

TRust Your GENerator (TRYGEN): Enhancing Out-of-Model Scope Detection

AI
Recent research has drawn attention to the ambiguity surrounding the definition and learnability of Out-of-Distribution recognition. Although the original problem remains unsolved, the term “Out-of-Model Scope” detection offers a clearer perspective. The
Václav Diviš, Bastian Spatz, Marek Hrúz   +2 more
doaj   +1 more source

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

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, Bidare Divakarachari Parameshachari, Dharmanna Shivappa Lamani   +2 more
wiley   +1 more source

Design issues toward a cost effective physical layer for multiband OFDM (ECMA-368) in consumer products [PDF]

, 2006
The creation of Wireless Personal Area Networks (WPANs) offers the Consumer Electronics industry a mechanism to truly unwire consumer products, leading to portability and ease of installation as never seen before.
Sherratt, R.S.
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, Juan Chen, Yuemeng Yin, Xing Cheng, Dandan Cheng   +4 more
wiley   +1 more source

Directive ultra wideband antenna for medical applications [PDF]

, 2020
Since the acceptance of unlicensed band of Ultra-Wideband (UWB) technology in the range between 3.1 and 10.6 GHz, the realization of low-cost UWB wireless systems is considered a fundamental research goal both for military and commercial applications ...
Mohamed, Habib Abdullahi
core  

Performance Evaluation of Impulse Radio UWB Systems with Pulse-Based Polarity Randomization [PDF]

, 2005
In this paper, the performance of a binary phase shift keyed random time-hopping impulse radio system with pulse-based polarity randomization is analyzed.
Andreas F. Molisch, H. Vincent Poor, Hisashi Kobayashi, Life Fellow, Senior Member, Sinan Gezici, Student Member   +6 more
core   +2 more sources

Discrimination Between Car Trunk and Child Motion Using Time‐Domain Kurtosis and Skewness Features for In‐Vehicle Child Presence Detection

Electronics Letters, Volume 62, Issue 1, January/December 2026.
Child‐presence detection systems based on ultra‐wideband radar can suffer false alarms when trunk‐lid motion resembles in‐cabin human activity. We propose a lightweight streaming time‐domain detector that uses sliding‐window skewness and kurtosis of the radar amplitude to distinguish stationary trunk plateaus from irregular human motion without ...
Wenxuan He, Lin Sun
wiley   +1 more source

A Koch Fractal Octagonal Antenna with a Compact Design and Defected Ground Structure (DGS) for Ultra-Wideband (UWB) Wireless Usage.

Jordanian Journal of Computers and Information Technology
This paper introduces a Koch fractal octagonal antenna designed for the Ultrawideband (UWB) Frequency range. The utilization of the Koch fractal in the antenna design contributes to size reduction as well as provides compactness in the antenna for UWB ...
TEJASWITA KUMARI, ABU NASAR GHAZALI, ANUPAMA SENAPATI   +2 more
doaj   +1 more source

Ultra‐Wideband Coupled‐Fed Loop Antenna Pair for 5G Mobile Terminals

IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.
This paper presents an ultra‐wideband (UWB) antenna pair for 5G mobile terminals. The UWB antenna pair is composed of two coupled‐fed loop antennas with a common shorted branch, which achieves a compact size. The experimental results show that the MIMO array covers 3.3–7.8 GHz with a relative bandwidth of 81.08%, and the isolation between ports is ...
Aidi Ren, Wenyi Song, Zhanhao Zhang, Ying Liu, Lixia Yang, Yingsong Li, Zhixiang Huang   +6 more
wiley   +1 more source

Underground personnel positioning system based on ultra wideband technology

Gong-kuang zidonghua, 2014
In view of problems of short transmission distance, poor anti-multipath effect and low positioning accuracy existed in current underground personnel positioning technologies, an underground personnel positioning system was proposed by use of ultra ...
LIU Shulun, WANG Shuse
doaj   +1 more source