Results 81 to 90 of about 115,454 (254)

DS-UWB and TH-UWB Energy Consumption Comparison

Journal of Telecommunications and Information Technology, 2016
The energy consumption of the wireless communication systems is starting to be unaffordable. One way to improve the power consumption is the optimization of the communication techniques used by the communication networks and devices. In order to develop an energy efficient UWB multi-user communication system, the choice of modulation and multi access ...
Elabboubi, Adil, Elbahhar, Fouzia, Heddebaut, Marc, El Hillali, Yassin   +3 more
openaire   +3 more sources

Towards a hardware implementation of ultra-wideband beamforming [PDF]

, 2010
This paper discusses and analyses the hardware implementation of an ultra-wideband (UWB) beamformer for UWB Impulse Radio data transmission. We use a Complex Programmable Logic Device (CPLD) acting as the binary baseband information source.
Beach, MA, Gartner, W, Gentner, PK, Hilton, GS, Mecklenbräuker, CF   +4 more
core   +2 more sources

Evaluating Multi‐Agent and Wavelet‐Transform Uncertainties in Lunar Seismic Ambient Noise Exploration

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Passive seismic ambient noise interferometry (ANI) has shown potential for lunar seismic exploration, offering the capability to detect near‐surface subsurface structures critical for future lunar mission, such as near‐surface ice deposits and lava tubes, without the need for active seismic sources.
Kai Nierula, Sabrina Keil, Dmitriy Shutin, Ban‐Sok Shin, Heiner Igel   +4 more
wiley   +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

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

YOLOv8-SAB: Terahertz Image Detection Network Based on Shuffle Attention and YOLOv8

IEEE Access
The limited accuracy of detecting small objects with current AI algorithm is becoming prominent under background of security check using low-resolved terahertz images.
Yu Jiang, Yizhang Li, Zhongmin Wang, Feng Qi, Fenggui Wang, Yongsheng Liu, Tao Chen   +6 more
doaj   +1 more source

Measurement of UWB signal path loss and center frequency selection in underground coal mines

Gong-kuang zidonghua, 2023
The deployment of UWB, 5G and WiFi6 systems underground in coal mines has problems such as multiple base stations, multiple transmission cables, multiple power supply equipment, high system costs, and heavy maintenance workload.
LYU Ruijie
doaj   +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, Aditya Bharambe, Dinesh K. Patel, Barbara Zhuo, Mason Zadan, Carmel Majidi, Swarun Kumar   +6 more
wiley   +1 more source

Two-Stage Code Acquisition Employing Search Space Reduction and Iterative Detection in the DS-UWB Downlink [PDF]

, 2008
—In this paper we propose and investigate an iterative code acquisition scheme assisted by both search space reduction and iterative Massage Passing (MP), which was designed for the Direct Sequence-Ultra WideBand (DS-UWB) DownLink (DL).
Hanzo, L, Won, S
core   +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, Shihao Dang, Zheng Gong, Jiahui Zhang, Jinwu Xiang, Yonggang Jiang, Daochun Li, Zhan Tu   +7 more
wiley   +1 more source