Results 51 to 60 of about 137,331 (82)

European Intensive Sessions for the Estimation of UT1

, 2019
Global Navigation Satellite Systems(GNSS), such as the United States GPS, the Russian GLONASS, or the European Galileo, require accurate information about the difference between Universal Time 1 and Coordinated Universal Time (UT1-UTC)in real time for ...
Schartner, Matthias, Böhm, Johannes, Gruber, Jakob, Kronschnabl, Gerhard, Schüler, Torben, Neidhardt, Alexander, Garcia-Espada, Susana, Plötz, Christian, De Vicente, Pablo, Schönemann, Erik, Bolano, Ruben, Gonzales, Javier, Phogat, Apurva   +12 more
core   +4 more sources

Research and Design of BPM Shortwave Time Signal Modulation Technology Based on Chirp

Remote Sensing
The shortwave time service system is a vital land-based wireless time service solution, serving as a supplement and backup to the global navigation satellite system. It ensures that time users can access reliable timings, especially in extreme situations.
Jiangbin Yuan, Shifeng Li, Wenhe Yan, Yuhang Song, Chaozhong Yang, Zhaopeng Hu, Dafeng Yang, Yu Hua   +7 more
doaj   +1 more source

The effect of high course material costs on UTC students [PDF]

, 2023
The high cost of course materials has been shown to have a detrimental effect on the educational outcomes of students in higher education. This survey explores how high course materials costs affect UTC students at all levels. Preliminary results will be
Baker, Laura A.
core   +1 more source

Space–Ground Joint Support Method in Autonomous Orbit Determination of BeiDou Satellites

Remote Sensing
When relying exclusively on inter-satellite links for autonomous orbit determination, it cannot suppress or eliminate the constellation overall rotation, rendering it incapable of determining its spatial orientation relative to terrestrial and celestial ...
Xiaojie Li, Rui Guo, Guangyao Chen, Shanshi Zhou, Hai Sha, Qian Ma, Yingying Zhao, Lu Zhang, Shan Wu, Jinglei Guo, Ying Liu   +10 more
doaj   +1 more source

Accuracy Evaluation of Multi-Technique Combination Nonlinear Terrestrial Reference Frame and EOP Based on Singular Spectrum Analysis

Remote Sensing
With the application and promotion of space geodesy, the popularization of remote sensing technology, and the development of artificial intelligence, a more accurate and stable Terrestrial Reference Frame (TRF) has become more urgent.
Qiuxia Li, Xiaoya Wang, Yabo Li
doaj   +1 more source

On the geometry of baselines suitable for UT1 estimation with VLBI Intensive sessions

, 2021
One hour single baseline VLBI sessions, so-called Intensives, are routinely observed to derive UT1-UTC with a short latency. The selection of baselines for VLBI Intensive sessions and their application for the determination of UT1-UTC is a complex task ...
Soja, Benedikt; id_orcid, Böhm, Johannes; orcid:, Böhm, Johannes, Kern, Lisa, Schartner, Matthias; id_orcid, Nothnagel, Axel, Soja, Benedikt; orcid:, Schartner, Matthias; orcid:   +7 more
core   +1 more source

USDOT-UTC Pedestrian/Bicycle Workshop [PDF]

To effectively address these elements, the workshop discussion focused on four comprehensive areas: networks and connectivity, data needs, tools to address bike/ped safety, and equity considerations/ladders of opportunity. USDOT modal representatives and
University Transportation Center (UTC)
core   +1 more source

UTC public transportation survey [PDF]

, 2012
Chattanooga Area Regional Transportation Authority, the public transit system in Chattanooga, covers most of downtown Chattanooga and its surrounding areas.
Blanariu, Andra
core   +1 more source

Intra-Technique Combination of VLBI Intensives and Rapid Data to Improve the Temporal Regularity and Continuity of the UT1-UTC Series

AbstractThe difference UT1-UTC is the most variable quantity among the Earth Orientation Parameters (EOP) with significant unpredictable variation. It can be measured only with the quasi-space-fixed technique VLBI. The IVS organizes two different VLBI observation campaigns: The bi-weekly 24-hour Rapid campaigns and the daily 1-hour Intensive sessions ...
Lisa Klemm, Daniela Thaller, Claudia Flohrer, Anastasiia Walenta, Dieter Ullrich, Hendrik Hellmers   +5 more
openaire   +1 more source

Fixed and growth mindsets at UTC

, 2020
For a class project, I chose to study the impact of mindset on the GPA of students at UTC. I surveyed a population of students to determine their mindset type: growth or fixed.
Stewart, Madison
core   +1 more source