Results 61 to 70 of about 362 (161)
Near‐Real‐Time Identification of the Source of Ionospheric Disturbances
Journal 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
Space 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
Local Monitoring of EGNOS Services
Annual of Navigation, 2012 Abstract Any SBAS system, as soon as it is permanently monitored by Earth stations, should deliver to the users correct information about quality of the augmented system. According to many sources of information, among them observations of authors, present accuracy of EGNOS service has accuracy about 1,5m (95%), but availability of the service is ...
Andrzej Felski, Aleksander Nowak
openaire +1 more source
Assessment of EGNOS Tropospheric Correction Model [PDF]
Journal of Navigation, 2001 Within the implementation of the European Geo-stationary Navigation Overlay System (EGNOS), a significant residual error in positioning is due to tropospheric delay effects. The EGNOS guidelines recommend that tropospheric delay is modelled using an empirical correction algorithm based on a receiver's height and estimates of meteorological ...
Penna NT, Dodson AH, Chen W
openaire +2 more sources
GEOmedia, 2006 Dall’inizio di quest’anno EGNOS, European Geostationary Navigation Overlay Service, iniziativa dell’Unione Europea e dell’Agenzia Spaziale Europea, è operativo e nel corso dell’anno raggiungerà i livelli di servizio richiesti dapprima per le applicazioni commerciali e, all’inizio del 2007, quelli per le applicazioni Safety Of Life.
Soares, Manuel Gonçalves +1 more
openaire +5 more sources
Overview of Space-Capable Global Navigation Satellite Systems Receivers: Heritage, Status and the Trend towards Miniaturization. [PDF]
Sensors (Basel), 2023 Gill E +5 more
europepmc +1 more source
Performance analysis of the BDSBAS-B1C message in trial operation stage. [PDF]
Sci Rep, 2023 Xin J +8 more
europepmc +1 more source
NEW STRATEGY THE FOR DESIGNATION OF THE INTEGRITY PARAMETER IN SBAS POSITIONING IN AIR TRANSPORT [PDF]
Scientific Journal of Silesian University of Technology. Series TransportThe 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
Il sistema EGNOS a supporto della navigazione sicura nei porti: il progetto SafePort
GEOmedia, 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
Applied SciencesThe potential for the use of smartphones in GNSSs (Global Navigation Satellite Systems) positioning has increased in recent years due to the emergence of the ability of Android-based devices used to process raw satellite data.
Grzegorz Grunwald +3 more
doaj +1 more source