Results 81 to 90 of about 65,492 (218)
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
Ultra-Wideband Aided Fast Localization and Mapping System
, 2017 This paper proposes an ultra-wideband (UWB) aided localization and mapping system that leverages on inertial sensor and depth camera. Inspired by the fact that visual odometry (VO) system, regardless of its accuracy in the short term, still faces ...
Nguyen, Thien-Minh +3 more
core +1 more source
Pneumatically‐Actuated Liquid Metal‐Based Frequency Reconfigurable Antenna
Advanced Science, Volume 13, Issue 5, 27 January 2026.A look at a flexible, frequency‐tuning antenna A Soft Solution: Introducing a new antenna design made with liquid metal composites. A Full Package: Combining flexible antennas with pneumatic actuators. End‐to‐End Control: Automatic reconfiguration according to signal strength.
Yiwen Song +6 more
wiley +1 more source
, 2007 This paper investigates and compares the performance of various ultrawide bandwidth (UWB) systems when communicating over Nakagami-m fading channels. Specifically, the direct-sequence (DS), time-hopping (TH) and hybrid direct-sequence time-hopping (DS-TH)
Ahmed, Qasim Zeeshan, Yang, Lie-Liang
core
Towards Beamforming For Uwb Signals
, 2004 Publication in the conference proceedings of EUSIPCO, Viena, Austria ...
Ries, Sigmar, Kaiser, Thomas
openaire +4 more sources
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
Towards Autonomous Uwb-Based Uav Indoor Navigation
Acta Electrotechnica et InformaticaThis 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 +2 more
doaj +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
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
Artificial Noise Aided Directional Modulation with Multilog Frequency Diverse Array
IET 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