Results 71 to 80 of about 3,204 (200)

An Angle Recognition Algorithm for Tracking Moving Targets Using WiFi Signals with Adaptive Spatiotemporal Clustering

Sensors, 2021
An angle estimation algorithm for tracking indoor moving targets with WiFi is proposed. First, phase calibration and static path elimination are proposed and performed on the collected channel state information signals from different antennas.
Liping Tian, Liangqin Chen, Zhimeng Xu, Zhizhang Chen   +3 more
doaj   +1 more source

Ryugu reference project: Recommendations from the measurement definition team

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 819-848, May 2026.
Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama, Guillaume Avice, Henner Busemann, Nicolas Dauphas, Daniel P. Glavin, Ashley J. King, Thorsten Kleine, Katharina Lodders, Frederic Moynier, Maria Schönbächler, Yoshinori Takano, Kun Wang, Hikaru Yabuta, Yuma Enokido, Ryota Fukai, Shogo Tachibana, Tomohiro Usui   +16 more
wiley   +1 more source

Electroactive Biodegradable Nerve Conduits Based on Alginate–Gelatine Polymer Matrix Modified With Inorganic Nanoparticles

Natural Sciences, Volume 6, Issue 2, April 2026.
The effects of ZnO, fullerene C60 and polyaniline (PANI) nanoparticles in hybrid nerve conduits are explored. The composites show enhanced electrical conductivity, permeability to physiological fluids and mechanical stability. The biocompatibility of composites is confirmed by in vivo and in vitro studies.
Liudmyla Sukhodub, Mariia Kumeda, Oleksandr Tsyndrenko, Natalia Bozhko, Liudmyla Vovchenko, Volodymyr Prokopiuk, Oleksander Petrenko, Leonid Sukhodub   +7 more
wiley   +1 more source

Angle of arrival estimation of on-body channels

, 2007
Angle of arrival (AoA) estimation has been performed on five on-body channels, namely belt-to-chest, belt-to-wrist, belt-to-ankle, belt-to-head and belt-to-back.
P.S. Hall, Y.I. Nechayev, Nechayev, Y. I., Hall, Peter, Nechayev, Yuriy, Kamarudin, Muhammad Ramlee, Hall, P. S., Kamarudin, MR, M.R. Kamarudin   +8 more
core   +1 more source

Angle-of-Arrival Measurement Techniques for Enhanced Positioning in Beyond 5G Systems [PDF]

, 2021
The new generation of mobile communication systems introduces new methods and technologies that may enhance positioning accuracy in some scenarios when the GNSS system cannot meet the requirements, such as indoor positioning and outdoor autonomous ...
Alfiza Ameen
core  

Angle of arrival estimation using BLE technology and antenna array

, 2022
Zasnovali smo sistem za oceno kota prihoda signala s tehnologijo nizkoenergij- skega Bluetootha, ki je z namenom bolj natančnega določanja lokacij naprav, v standard verzije 5.1 dodal funkcionalnost za oceno kota prihoda signala (ang.
SIMONČIČ, ALEŠ
core  

MUSIC-based Angle-of-Arrival Estimation using Multi-beam Leaky-Wave Antennas

, 2021
International audienceThis paper addresses the problem of angle-of-arrival (AoA) estimation with leaky-wave antennas (LWA), specifically, the necessity to operate over large bandwidth to cover a large field of view.
Sarrazin, Julien, J. Sarrazin
core   +1 more source

Learning Approach for Angle Estimation Based on Characteristics of Phase Drift

Applied Sciences
Indoor positioning systems (IPSs) are increasingly vital for various applications on the Internet of Things (IoT), including home automation, navigation in large buildings, AR, and smart city development.
Seoyoung Koh, Jaeho Lee
doaj   +1 more source

TranQuiL: Long Range Detection and Localization of Interference in Radio Quiet Zones

Radio Science, Volume 61, Issue 1, January 2026.
Abstract Radio Quiet Zones (RQZs) have been established to prevent radio sources from causing harmful interference to sensitive radio telescopes, which study extremely faint cosmic radio waves. Even with strict regulations, such interference is growing due to the widespread use of consumer electronics, emitting in many different frequency bands ...
Atul Bansal, Mohamed Ibrahim, Kuang Yuan, Yiwen Song, Bob Iannucci, Swarun Kumar   +5 more
wiley   +1 more source

Hyperparameter‐Free Maximum Versoria Criterion Based Channel‐State Acquisition for mmWave Hybrid MIMO With Hardware Impairments

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper addresses channel estimation in mmWave (millimetre wave) hybrid MIMO (multiple‐input multiple‐output) systems impaired by residual transceiver hardware nonidealities, modelled as additive non‐Gaussian noise via Bussgang decomposition. A hyperparameter‐free maximum Versoria criterion (MVC)‐based channel estimator is proposed, featuring a ...
Rangeet Mitra, Sandesh Jain, K. Venkateswaran, Rajat Kumar, Vimal Bhatia, Ondrej Krejcar   +5 more
wiley   +1 more source