Results 31 to 40 of about 387 (165)
GDOP-Assisted Location Estimation Algorithms in Wireless Location Systems [PDF]
IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference, 2008 In recent years, wireless location estimation has attracted a significant amount of attention in different areas. The network-based location estimation schemes have been widely adopted based on the radio signals between the mobile station (MS) and the base stations (BSs).
Lin-Chih Chu +2 more
openaire +1 more source
IET Radar, Sonar & Navigation, 2022 The use of low earth orbit (LEO) satellites to enhance the performance of global navigation satellite system navigation and positioning services has become a popular research topic.
Jing Liu +5 more
doaj +1 more source
Sensors, 2015 Indoor localization is a significant research area in wireless sensor networks (WSNs). Generally, the nodes of WSNs are deployed in the same plane, i.e., the floor, as the target to be positioned, which causes the sensing signal to be influenced or even ...
Zixi Jia +4 more
doaj +1 more source
Sensors, 2020 The Long Range Navigation (Loran) system as a backup of the Global Navigation Satellite System (GNSS) is a good choice. The dominant deterioration factors of position accuracy are the pseudo-range measurement errors and the geometric dilution of ...
Baorong Yan, Yun Li, Wei Guo, Yu Hua
doaj +1 more source
Space Weather, Volume 24, Issue 4, April 2026.Abstract This study investigated a large‐scale ionospheric irregularities event over low‐ to mid‐latitude China during the 1 December 2023 geomagnetic storm using ROTI data, loss‐of‐lock (LoL) in L2 from 250 GNSS receivers, and S4 data from 16 ISMs.
Yi Zeng +4 more
wiley +1 more source
Iranian Journal of Electrical and Electronic Engineering, 2020 Geometric Dilution of Precision (GDOP) is a coefficient for constellations of Global Positioning System (GPS) satellites. These satellites are organized geometrically.
M. H. Refan, A. Dameshghi
doaj
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 +5 more
wiley +1 more source
TransLAP: Non‐Isometric Shape Matching Using Transformer Based Linear Assignment Problem
IET Image Processing, Volume 20, Issue 1, January/December 2026.We propose a transformer‐based framework for establishing correspondences between 3D shapes under challenging conditions, such as mixed poses and non‐isometric deformations. Our method combines attention mechanisms with a linear assignment problem solver (TransLAP) and a mapping modifier, achieving significant improvements in accuracy over state‐of‐the‐
Amirreza Amirfathiyan +1 more
wiley +1 more source
Applied Sciences, 2019 Cellular communication systems support mobile phones positioning function for Enhanced-911 (E-911) location requirements, but the positioning accuracy is poor. The fifth-generation (5G) cellular communication system can use indoor distribution systems to
Zhongliang Deng +6 more
doaj +1 more source
Range‐Free Localisation for Monostatic Passive Radar Employing Multi‐Narrowband Illuminators
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.Range‐free localisation is considered for monostatic passive radar with multiple narrowband illuminators under unreliable time‐delay (range) measurements. Doppler/DOA (and optional Doppler‐rate) are fused in an ML framework, where velocity is iteratively updated to reduce the original 6‐D optimisation to a 3‐D position search.
Chenggeng Zhao +4 more
wiley +1 more source