Results 21 to 30 of about 2,307 (194)

Advances of SBAS authentication technologies

open access: yesSatellite Navigation, 2021
Satellite Based Augmentation System (SBAS) provides the corrections and integrity information to users, but as its signal format is opened to the public and Global Navigation Satellite System (GNSS) spoofing technology becomes more realistic, more ...
Ying Chen   +8 more
doaj   +1 more source

SBAS/EGNOS for Maritime

open access: yesJournal of Marine Science and Engineering, 2020
The Global Navigation Satellite System (GNSS) has become the primary means of obtaining Position, Navigation, and Timing (PNT) information at sea. The current capabilities of the Global Positioning System (GPS) constellation, although adequate for ocean ...
Manuel Lopez-Martinez   +3 more
doaj   +1 more source

EXAMINATION OF DIFFERENT MODELS OF TROPOSPHERE DELAYS IN SBAS POSITIONING IN AERIAL NAVIGATION [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2023
This paper presents the results of a study on the use of different tropospheric correction models in SBAS positioning for air navigation. The paper, in particular, determines the influence of the Saastamoinen troposphere and RTCA-MOPS models on the ...
Kamil KRASUSKI   +1 more
doaj   +1 more source

Signature of ionospheric irregularities under different geophysical conditions on SBAS performance in the western African low-latitude region [PDF]

open access: yesAnnales Geophysicae, 2017
Rate of change of TEC (ROT) and its index (ROTI) are considered a good proxy to characterize the occurrence of ionospheric plasma irregularities like those observed after sunset at low latitudes.
O. E. Abe   +6 more
doaj   +1 more source

Models and performance of SBAS and PPP of BDS

open access: yesSatellite Navigation, 2022
Satellite Based Augmentation System (SBAS) is one of the services provided by the BeiDou Navigation Satellite System (BDS). It broadcasts four types of differential corrections to improve user application performance.
Junping Chen   +5 more
doaj   +1 more source

Designation of the Quality of EGNOS+SDCM Satellite Positioning in the Approach to Landing Procedure

open access: yesApplied Sciences, 2022
The main aim of this paper is to present the results of research on the application of a modified mathematical model to determine the quality parameters of SBAS (Satellite Based Augmentation System) satellite positioning in aviation.
Kamil Krasuski   +5 more
doaj   +1 more source

AATR an ionospheric activity indicator specifically based on GNSS measurements [PDF]

open access: yes, 2018
This work reviews an ionospheric activity indicator useful for identifying disturbed periods affecting the performance of Global Navigation Satellite System (GNSS). This index is based in the Along Arc TEC Rate (AATR) and can be easily computed from dual-
González Casado, Guillermo   +5 more
core   +2 more sources

Authentication of Satellite-Based Augmentation Systems with Over-the-Air Rekeying Schemes

open access: yesNavigation, 2023
Here we delineate a complete satellite-based augmentation system (SBAS) authentication scheme, including over-the-air rekeying (OTAR), that uses the elliptic curve digital signature algorithm (ECDSA) and timed efficient stream loss-tolerant ...
Jason Anderson   +3 more
doaj   +1 more source

Safety arguments for next generation location aware computing [PDF]

open access: yes, 2010
Concerns over the accuracy, availability, integrity and continuity of Global Navigation Satellite Systems (GNSS) have limited the integration of GPS and GLONASS for safety-critical applications.
Holloway, C.M., Johnson, C.W.
core   +2 more sources

Evaluation of Orbit, Clock and Ionospheric Corrections from Five Currently Available SBAS L1 Services: Methodology and Analysis

open access: yesRemote Sensing, 2019
To meet the demands of civil aviation and other precise navigation applications, several satellite-based augmentation systems (SBASs) have been developed around the world, such as the Wide Area Augmentation System (WAAS) for North America, the European ...
Zhixi Nie   +4 more
doaj   +1 more source

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