Results 41 to 50 of about 52,769 (226)
SensorsThe Galileo satellite navigation system now provides initial services. With further satellite launches, the performance of Galileo will gradually improve, and new services will be introduced. This study aims to provide a comprehensive analysis of Galileo
Jiantao Zhang, Weiwei Li
doaj +1 more source
IEEE Access, 2020 Spoofing attacks pose a clear cybersecurity risk for all systems relying on Global Navigation Satellite Systems (GNSS) for time synchronization or positioning.
Francisco Gallardo, Antonio Perez Yuste
doaj +1 more source
Formal Specification and Quantitative Analysis of a Constellation of Navigation Satellites [PDF]
, 2014 Navigation satellites are a core component of navigation satellite based systems such as GPS, GLONASS and Galileo which provide location and timing information for a variety of uses. Such satellites are designed for operating on orbit to perform tasks and have lifetimes of 10 years or more.
arxiv +1 more source
Tracking the position Global satellite navigations in Europe Expanding man's understanding ‘GALILEO: 2020!’ [PDF]
, 2020 Mankind has a thirst to travel and while travel into outer space is a relatively new concept, we increasingly rely, on Earth, on technologies deployed in space to aid our safety, security – including in a transport context, where we look for efficient ...
Fox, S., Fox, S.
core
Kinematic Absolute Positioning with Quad-Constellation GNSS [PDF]
, 2019 The absolute positioning technique is based on a point positioning mode with a single Global Navigation Satellite System (GNSS) receiver, which has been widely used in many fields such as vehicle navigation and kinematic surveying.
Cai, Changsheng +3 more
core +2 more sources
Journal of Geophysical Research: Space Physics, Volume 130, Issue 5, May 2025.Abstract The interaction between Jupiter's magnetosphere and the solar wind is not well‐constrained: while internal energetic plasma processes are thought to dominate plasma circulation, the solar wind nonetheless exerts significant control over the shape and scale of the whole structure.
M. J. Rutala +11 more
wiley +1 more source
Galileo L10 Satellites: Orbit, Clock and Signal-in-Space Performance Analysis
Sensors, 2021 The tenth launch (L10) of the European Global Navigation Satellite System Galileo filled in all orbital slots in the constellation. The launch carried four Galileo satellites and took place in July 2018.
Constantin-Octavian Andrei +4 more
doaj +1 more source
Geophysical Research Letters, Volume 52, Issue 8, 28 April 2025.Abstract Traveling ionospheric disturbances (TIDs) driven by a large number of internal and external sources are detectable with dense networks of ground‐based Global Navigation Satellite System (GNSS) receivers' measurements of total electron content (TEC).
P. A. Inchin +6 more
wiley +1 more source
Performances of a GNSS receiver for space-based applications [PDF]
, 2010 Space Vehicle (SV) life span depends on its station keeping capability. Station keeping is the ability of the vehicle to maintain position and orientation. Due to external perturbations, the trajectory of the SV derives from the ideal orbit.
Bousquet, Michel +3 more
core
Europejskie programy GNSS na rynku globalnych systemów nawigacyjnych
Prace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego, 2009 The study includes the description of development conditions for the satellite navigation programme Galileo. Its also includes some aspects of the Galileo programme accomplishment, especially its influence on the integration process in Europe and ...
Witold Warcholik
doaj +1 more source