Results 61 to 70 of about 6,374 (186)

Towards Autonomous Uwb-Based Uav Indoor Navigation

Acta Electrotechnica et Informatica
This paper presents a system for autonomous indoor navigation of the DJI Mini 3 drone by combining an Android-based control application with ultra-wideband (UWB) technology for precise localization.
Krupáš Maroš, Pačuta Kristián, Zolotová Iveta   +2 more
doaj   +1 more source

Compact Ultra Wide-Band and Tri-Band Antenna for Portable Device [PDF]

Radioengineering, 2020
A compact ultra-wideband (UWB) and triband patch antenna with the partial ground plane is presented in this paper. Initially, the antenna is designed for UWB applications, operating at the UWB portion of the spectrum ranging from 3.1 GHz to 10.6 GHz ...
A. Ghaffar, W. A. Awan, A. Zaidi, N. Hussain, S. M. Rizvi, X. J. Li   +5 more
doaj  

Ionic Liquid‐Based Reversible Metal Electrodeposition for Adaptive Radiative Thermoregulation Under Extreme Environments

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, Chenxi Sui, Jiacheng Tian, Genesis Higueros, Ting‐Hsuan Chen, Ronghui Wu, Pei‐Jan Hung, Yang Deng, Natalie Rozman, Willie John Padilla, Po‐Chun Hsu   +10 more
wiley   +1 more source

S-Parameter Analysis of Three-Layered Aperture Coupled Antenna with a Flame Retardant-4 Composite Material as Substrate for Biomedical Applications [PDF]

Mechanics of Advanced Composite Structures
In biomedical applications, particularly for tumor detection, the need for high-resolution imaging systems is critical. This paper presents the “S” parameter analysis of a three-layer stacked microstrip antenna with Defected Ground Structure (DGS) having
G. S. Deepthy, M. Nesasudha, T. A. Karthikeyan   +2 more
doaj   +1 more source

Underground Personnel Positioning Method Based on Self-training and NLOS Suppression

Taiyuan Ligong Daxue xuebao
[Purposes] The research of precise location of underground personnel in coal mine is of great significance to protect their life safety. The ultra-wideband signal is susceptible to non-lineof- sight (NLOS) interference, which will seriously affects the ...
SHAO Xiaoqiang, HAN Zehui, MA Bo, YANG Yongde, YUAN Zewen, LI Xin   +5 more
doaj   +1 more source

UWB slot-loaded Antipodal Vivaldi Antenna for through-the-wall radar imaging (TWRI) applications [PDF]

Serbian Journal of Electrical Engineering
The study presents an Ultra-Wideband Slot-loaded Antipodal Vivaldi Antenna (SL-AVA) designed for through-the-wall radar imaging (TWRI) applications. The antenna incorporates rectangular slots of varying lengths and widths, effectively extending ...
Ahmed Sajjad, Joret Ariffuddin, Katiran Norshidah, Abbasi Muhammad Inam, Aminuddin Nuramin Fitri   +4 more
doaj   +1 more source

Design of mine-used integrated intelligent vehicle terminal based on UWB

Meikuang Anquan
We designed an intelligent vehicle terminal based on UWB accurate positioning technology, which integrates multiple functions such as precise positioning, 4G/5G wireless communication, video monitoring, data acquisition, voice call and other functions ...
Yang HAN
doaj   +1 more source

Key technology of an identification card for mobile phone positioning

Meikuang Anquan
In order to solve the problem that most of the existing mine-used smart phones only have the functions of voice calls, video photos, data transmission and so on, and do not have the functions of precise positioning, position coordinate display, message ...
Fei WANG
doaj   +1 more source

Deep Learning-Based LOS and NLOS Identification in Wireless Body Area Networks

Sensors, 2019
In this article, the usage of deep learning (DL) in ultra-wideband (UWB) Wireless Body Area Networks (WBANs) is presented. The developed approach, using channel impulse response, allows higher efficiency in identifying the direct visibility conditions ...
Krzysztof K. Cwalina, Piotr Rajchowski, Olga Blaszkiewicz, Alicja Olejniczak, Jaroslaw Sadowski   +4 more
doaj   +1 more source

Proof of Concept for measuring vital signs using UWB transceivers

Current Directions in Biomedical Engineering
This paper shows the possibility of using Ultrawideband (UWB) DW3000 transceivers for noninvasive vital sign monitoring via a transversal propagation method.
Egemann Noel, Kitzig Andreas, Naroska Edwin   +2 more
doaj   +1 more source