Remote Sensing, 2019 The emergence of multiple global navigation satellite systems (multi-GNSS), including global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), and Galileo, brings not only great ...
Wenju Fu +6 more
doaj +1 more source
Galileo disposal strategy: stability, chaos and predictability [PDF]
arXiv, 2015 Recent studies have shown that the medium-Earth orbit (MEO) region of the Global Navigation Satellite Systems is permeated by a devious network of lunisolar secular resonances, which can interact to produce chaotic and diffusive motions. The precarious state of the four navigation constellations, perched on the threshold of instability, makes it ...
arxiv
Performance Comparison of a proposed Vector Tracking architecture versus the Scalar configuration for a L1/E1 GPS/Galileo receiver [PDF]
ENC 2016, European Navigation Conference, May 2016, Helsinki,
Finland. pp.ISBN : 9781479989164, 2019 In urban environments, standalone GNSS receivers can be strongly affected to the point of not being able to provide a position accuracy suitable for use in vehicular applications. In this paper, a vector delay/frequency-locked loop (VDFLL) architecture for a dual constellation L1/E1 GPS/Galileo receiver is proposed.
arxiv
Real-Time Precise Point Positioning Method Considering Broadcast Ephemeris Discontinuities
NavigationWith advancements in the broadcast ephemeris accuracy of global navigation satellite systems (GNSSs), precise point positioning based on broadcast ephemeris (BE-PPP) is gradually showing promising prospects.
Quanrun Cheng +3 more
doaj +1 more source
SYSTEM GALILEO WILL HELP TO REVITALISE THE RAILWAYS
Perner’s Contacts, 2006 The article deals with the study, which is based on the expertise of the UIC work group GALILEO applications for rail. The power of using the satellite navigation technology in the railway system results from its combination with other technologies. The
Eva Nedeliaková +2 more
doaj
Efectos relativistas en los sistemas Galileo, GPS y GLONASS [PDF]
arXiv, 2004 Nowadays, the Global Navigation Satellite Systems (GNSS), working like global positioning systems, are the GPS (NAVSTAR) and the GLONASS, which only are operative when several relativistic effects are corrected. In the next years the Galileo system will be constructed, copying the GPS System if there is no an alternative project.
arxiv
The Principle and Application of Maser Navigation [PDF]
arXiv, 2008 The traditional celestial navigation system (CNS) is used the moon, stars, and planets as celestial guides. Then the star tracker (i.e. track one star or planet or angle between it) and star sensor (i.e. sense many star simultaneous) be used to determine the attitude of the spacecraft. Pulsar navigation also be introduced to CNS.
arxiv
RF ENVIRONMENT TEST ON A PROPOSED SITE FOR THE SENSOR STATION OF THE NEXT GENERATION SATELLITE NAVIGATION SYSTEM, GALILEO: I. THE RESULT OF THE TEST ON THE VICINITY OF KVN TAMLA SITE IN THE YEAR OF 2006 BY KASI [PDF]
, 2008 Jung Hyun Jo +12 more
openalex +1 more source
Combining GPS and Galileo Signals Acquisition in a Single Processing Chain
Diyala Journal of Engineering SciencesThe increasing demand for accurate and efficient Global Navigation Satellite System (GNSS) receivers, especially in smartphones, has driven the need to combine multi-GNSS signals.
Ali Albu-Rghaif +2 more
doaj +1 more source
Pulsar Navigation in the Solar System [PDF]
arXiv, 2008 The X-ray Navigation and Autonomous position Verification (XNAV) is tested which use the Crab pulsar under the Space Test Program that use starlight refraction. It provide the way that the spacecraft could autonomously determine its position with respect to an inertial origin.
arxiv