Results 11 to 20 of about 159,010 (257)
How Accurate are SuperCOSMOS Positions? [PDF]
Publications of the Astronomical Society of Australia, 2014 AbstractOptical positions from the SuperCOSMOS Sky Survey have been compared in detail with accurate radio positions that define the second realisation of the International Celestial Reference Frame (ICRF2). The comparison was limited to the IIIaJ plates from the UK/AAO and Oschin (Palomar) Schmidt telescopes.
Schaefer, Adam +2 more
openaire +2 more sources
Accurate positioning in ultra-wideband systems [PDF]
IEEE Wireless Communications, 2011 Accurate positioning systems can be realized via ultra-wideband signals due to their high time resolution. In this article, position estimation is studied for UWB systems. After a brief introduction to UWB signals and their positioning applications, two-step positioning systems are investigated from a UWB perspective.
Hamza Soganci +2 more
openaire +3 more sources
Tracking and reconstruction of vehicles for accurate position estimation [PDF]
2011 IEEE Workshop on Applications of Computer Vision (WACV), 2011 To improve traffic safety it is important to evaluate the safety of roads and intersections. Today this requires a large amount of manual labor so an automated system using cameras would be very beneficial. We focus on the geometric part of the problem, that is, how to get accurate three-dimensional data from images of a road or an intersection.
Källén, Hanna +2 more
openaire +1 more source
A Milliarcsecond-accurate Position for Sagittarius A*
The Astrophysical Journal, 2022 Abstract The absolute position of Sgr A*, the compact radio source at the center of the Milky Way, had been uncertain by several tens of milliarcseconds. Here we report improved astrometric measurements of the absolute position and proper motion of Sgr A*.
Shuangjing Xu +5 more
openaire +2 more sources
Sensors, 2022 Monitoring and tracking issues related to autonomous mobile robots are currently intensively debated in order to ensure a more fluent functionality in supply chain management.
Alexandru-Tudor Popovici +2 more
doaj +1 more source
Accurate position tracking with a single UWB anchor [PDF]
2020 IEEE International Conference on Robotics and Automation (ICRA), 2020 Accurate localization and tracking are a fundamental requirement for robotic applications. Localization systems like GPS, optical tracking, simultaneous localization and mapping (SLAM) are used for daily life activities, research, and commercial applications.
Yanjun Cao +4 more
openaire +3 more sources
Design of cognitive algorithm for mine-used accurate positioning system
Gong-kuang zidonghua, 2015 In view of problem of high power consumption and data generation rate of existing mine-used accurate positioning system, a cognitive algorithm for mine-used accurate positioning system was designed.
WU Wei, HUANG Qian, TANG Lijun
doaj +1 more source
A Simple 2D Accurate Mini Implant Positioning Guide [PDF]
Journal of Clinical and Diagnostic Research, 2014 One of the major issues in orthodontic treatment is anchorage planning when using a pre adjusted edgewise appliance system. The conventional methods described in the literature include banding of second molars, transpalatal arches and headgears that ...
ARUN KUMAR DASARI +4 more
doaj +1 more source
Accurate positioning system for mine based on UWB technology
Meikuang Anquan, 2021 This paper proposes a design scheme of mine precision positioning based on UWB technology. Firstly, the environmental characteristics of mine roadways are analyzed, and then the system networking model and UWB accurate positioning algorithm are studied ...
WANG Fei
doaj +1 more source
A commentary of Hyper-accurate position in MIT Technology Review 2021
Fundamental Research, 2021 The positioning accuracy improvement of satellite navigation system support the development of industries related to high accuracy positioning. The BeiDou global satellite navigation system (BDS-3) started providing full-scale global services in 2020 ...
Xia Ren, Yuanxi Yang
doaj +1 more source