Real-time relative positioning of spacecraft over long baselines [PDF]
, 2014 This paper deals with the problem of real-time onboard relative positioning of low Earth orbit spacecraft over long baselines using the Global Positioning System.
Grassi M, Renga A, Tancredi U
core
Galileo broadcast ephemeris and clock errors, and observed fault probabilities for ARAIM
, 2023 (English) The characterization of Clock and Ephemeris error of the Global Navigation Satellite Systems is a key element to validate the assumptions for the integrity analysis of GNSS Safety of Life (SoL) applications. Specifically, the performance metrics of SoL applications require the characterization of the nominal User Range Errors (UREs) as well ...
openaire +4 more sources
Real-Time Detection of Orbital Maneuvers Using Epoch-Differenced Carrier Phase Observations and Broadcast Ephemeris Data: A Case Study of the BDS Dataset. [PDF]
Sensors (Basel), 2020 Tu R +5 more
europepmc +1 more source
Accuracy Study of a Single Frequency Receiver Using a Combined GPS/GALILEO Constellation [PDF]
, 2005 As the date of availability of GALILEO approaches, more and more interest appears to pre-evaluate the accuracy of GALILEO and combined GPS+ GALILEO receivers. The majority of simulations made are based on the general use of UERE (often presented as a
Belabbas, Boubeker +2 more
core
Application of GPS tracking techniques to orbit determination for TDRS [PDF]
In this paper, we evaluate two fundamentally different approaches to TDRS orbit determination utilizing Global Positioning System (GPS) technology and GPS-related techniques. In the first, a GPS flight receiver is deployed on the TDRSS spacecraft.
Haines, B. J. +3 more
core +1 more source
NAVIGATION PERFORMANCE IN HIGH EARTH ORBITS USING NAVIGATOR GPS RECEIVER [PDF]
NASA GSFC has developed a GPS receiver that can acquire and track GPS signals with sensitivity significantly lower than conventional GPS receivers. This opens up the possibility of using GPS based navigation for missions in high altitude orbit, such as ...
Bamford, William +2 more
core +1 more source
This semi-annual progress report provides an overview of the work performed during the first six months of Grant NAG 1 1423, titled 'GPS Interferometry'. The Global Positioning System (GPS) is a satellite-based positioning and timing system.
Vangrass, Frank
core +1 more source
Research on the Fitting Algorithm of GLONASS Broadcast Ephemeris Parameters [PDF]
Proceedings of the 2015 Joint International Mechanical, Electronic and Information Technology Conference, 2015 Luming Quan, Xie xiao Gang
openaire +1 more source
Izračun položaja GPS-satelita iz podatkov preciznih efimerid : GPS-orbit computation from precise ephemeris data [PDF]
Geodetski Vestnik, 2005 The article describes the theoretical point of view of the GPS precise ephemerides application that should be used in most precise GPS processing. Regarding broadcast, precise ephemerides allow us to achieve a much better accuracy of the final GPS ...
Bojan Stopar +1 more
doaj
Differential GPS for small UAS using consumer-grade single-frequency receivers [PDF]
, 2013 Consumer-grade single-frequency GPS receivers with their known limitations are the predominant means of localization for small Unmanned Aircraft Systems (UAS).
Bolting, Jan +2 more
core