Results 101 to 110 of about 95,608 (153)

Medium Scale Travelling Ionospheric Disturbances sensed with GNSS TEC and SuperDARN

, 2022
Medium Scale Travelling Ionospheric Disturbances (MSTIDs) are quasi-wavelike structures in ionospheric density that can be sensed using Global Navigational Satellite Service (GNSS) Total Electron Content (TEC) techniques and coherent scatter radars such ...
Kelley, Ian James
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Contributions to the foundations of a safety case for the use of GNSS in railway environments [PDF]

, 2009
The use of GNSS in the railways for passenger information services and selective door opening is already commonplace but the advancement of this increasingly popular navigation technique into safety of life rail applications has been hindered by the ...
Stolagiewicz, A.A.
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Study on the Three-Dimensional Evolution of Ionospheric Disturbances in China During the Geomagnetic Storm on December 1, 2023

Atmosphere
On 1 December 2023, a strong geomagnetic storm was triggered by an interplanetary shock caused by a coronal mass ejection (CME). This study used data from 193 Global Navigation Satellite System (GNSS) observation stations in China to study the three ...
Yifei Yang, Jian Kong, Xiangping Chen, Congcong Ling, Changzeng Tang, Yibin Yao, Zhaorong Zhu   +6 more
doaj   +1 more source

Temporal and Spatial Analysis of the Impact of the 2015 St. Patrick’s Day Geomagnetic Storm on Ionospheric TEC Gradients and GNSS Positioning in China Using GIX and ROTI Indices

Remote Sensing
Geomagnetic storms induce ionospheric disturbances, significantly affecting Global Navigation Satellite System (GNSS) positioning accuracy. This study investigates how geomagnetic storm-induced ionospheric irregularities influence GNSS Precise Point ...
Zhihao Fu, Ningbo Wang, Xuhui Shen, Ang Li   +3 more
doaj   +1 more source

Analisis Plasma Bubble Menggunakan GNSS-TEC Dengan Metode 3D Tomografi

Lapisan ionosfer dapat mengalami gangguan sinyal satelit akibat fenomena plasma bubble, yang disebabkan oleh ketidakstabilan Rayleigh-Taylor (RTI) dan diperkuat oleh medan listrik ke arah timur setelah matahari terbenam.
Komalasari, Nilam
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TEC Parametric Model validation and Approach to GNSS operational conditions

, 2017
Preprint
openaire   +1 more source

GNSS scintillation and TEC data at Skibotn in 2014-2023

This is a collection of GNSS scintillation and TEC data at Skibotn (SKN) in 2014-2023. The GPS scintillation receiver is the standard GPS Ionospheric Scintillation/total electron content (TEC) Monitor (GISTM), model GSV4004.
Jin, Yaqi
core   +1 more source

GNSS availability on geostationary orbit

, 2015
Приводятся результаты исследования модели GNSS для обеспечения навигации по сигналам GNSS на высотах от 3000 до 36000 ...
Шишков Федор, Shyshkov Fedir, Конин Валерий, Konin Valeriy, Погурельский Алексей, Pogurelskiy Oleksey   +2 more
core  

TEC calculated from GNSS and its comparison with IRI

, 2018
openaire   +1 more source

Displacements at the GNSS Stations

The daily movements of EUPOS®-RIGA and LatPos permanent GNSS stations have been studied. The results of site heights' time series have shown some coherence between extreme values of the vertical displacements at the Latvian GNSS stations and distribution
Haritonova, Diāna, Balodis, Jānis
core