Results 71 to 80 of about 1,528 (179)

Enhancing Scientific Capacity in Africa – A Report on the 2023 International Space Weather Initiative School and the African Geophysical Society Annual Conference

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 2, February 2025.
Abstract Natural hazards, such as weather in space and the terrestrial environment, have the potential to disrupt critical technologies and infrastructures that contribute to national security and economic advancement. Enhancing our understanding of natural hazards is a central part to developing mitigation strategies to avert their impact on ...
Chigomezyo M. Ngwira   +4 more
wiley   +1 more source

EGNOS Performance Improvement in Southern Latitudes [PDF]

open access: yesTransNav, 2011
This paper intends to provide results from ?EGNOS Performance Improvement in Southern Latitudes? (EPISOL) project. EPISOL is performed by the Greek company GEOTOPOS S.A. under a contract with the European Space Agency (ESA).
Liza Panagiotopoulou, Kyriakos Frangos
doaj  

Egnos Limitations over Central and Eastern Poland – Results of Preliminary Tests of Egnos-Eupos Integration Project [PDF]

open access: yesArtificial Satellites, 2013
Abstract The problem of insufficient accuracy of EGNOS correction for the territory of Poland, located at the edge of EGNOS range is well known. The EEI PECS project (EGNOS EUPOS Integration) assumes improving the EGNOS correction by using the GPS observations from Polish ASG-EUPOS stations.
Leszek Jaworski   +2 more
openaire   +1 more source

Near‐Real‐Time Identification of the Source of Ionospheric Disturbances

open access: yesJournal of Geophysical Research: Space Physics, Volume 129, Issue 11, November 2024.
Abstract The ionosphere is characterized by a large number of disturbances generated in response to a wide range of phenomena, including natural hazards, space weather and man‐made events. Identification of the origin of ionospheric disturbances (ID), especially in real or near‐real‐time (NRT), is an extremely difficult task, and it is one of the most ...
B. Maletckii, E. Astafyeva
wiley   +1 more source

Characterization of Scintillation Events With Basis on L1 Transmissions From Geostationary SBAS Satellites

open access: yesSpace Weather, Volume 22, Issue 1, January 2024.
Abstract Signals recorded by two stations in the Brazilian region: [Fortaleza (3.74°S, 38.57°W) and Inconfidentes (22.31°S, 46.32°W)], receiving L1 transmissions from different geostationary satellites, were used to evaluate the amplitude scintillation index S4 and several characteristics of scintillation events (continuous record with S4 > 0.2) during
Alison Moraes   +5 more
wiley   +1 more source

The GPS/EGNOS Supervision System of Navigation Permormance in Ukraine [PDF]

open access: yes, 2007
Розглядається стан робіт по створенню системи моніторингу навігаційних характеристик GPS/EGNOS на території України. Наведені отримані результати, архітектура системи моніторингу і підсистеми збору та обробки інформації, плани розробки та вводу в ...
Лук'янов, О.М.   +4 more
core   +1 more source

NEW STRATEGY THE FOR DESIGNATION OF THE INTEGRITY PARAMETER IN SBAS POSITIONING IN AIR TRANSPORT [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport
The article shows the results of a study on the determination of SBAS satellite positioning integrity parameters as a HPL and VPL protection levels. To this end, a modified algorithm was developed to determine the HPL and VPL protection levels from a ...
Magda MROZIK   +5 more
doaj   +1 more source

Performance analysis of the BDSBAS-B1C message in trial operation stage. [PDF]

open access: yesSci Rep, 2023
Xin J   +8 more
europepmc   +1 more source

Il sistema EGNOS a supporto della navigazione sicura nei porti: il progetto SafePort

open access: yesGEOmedia, 2012
Il progetto SafePort, sviluppato all’interno del 7° Programma Quadro promosso dalla Unione Europea con la supervisione di European GNSS Agency (GSA) che segue tutti i programmi applicativi inerenti ai sistemi GNSS europei, Galileo ed EGNOS, ha l ...
Antonio Casoria   +7 more
doaj   +2 more sources

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