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Accuracy Assessment of Broadcast Ephemerides for Quasi-Zenith Satellite System
Lecture Notes in Electrical Engineering, 2018In this paper, we presented a method for assessing the broadcast ephemerides accuracy of QZSS by comparing the measured broadcast ephemerides with precise orbit and clock products provided by MGEX. By using this method, we carried out assessment of broadcast ephemerides for QZS-1 satellite and also compared the results with that of GPS system during ...
Chuang Jin, Chengpan Tang
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An improved method for real-time PPP timing and time transfer with broadcast ephemerides
Measurement Science and Technology, 2022Abstract Due to the problem of network communication, it is difficult to ensure the reliability of real-time precise point positioning (PPP) timing/time transfer with real-time precise products. With the continued reduction in the signal-in-space range error, the performance and feasibility of GPS and Galileo PPP ...
Yulong Ge +5 more
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GPS positioning with broadcast and precise ephemerides
SICE '95. Proceedings of the 34th SICE Annual Conference. International Session Papers, 2002The precise ephemeris and space vehicle clock corrections computed routinely by the International GPS Service for Geodynamics (IGS) under the International Association of Geodesy (IAG) is accurate to less than submeter. Since the precise orbit/clock is free from selective availability (SA) errors, accurate point positioning and orbit determination can ...
M. Murata, M. Harigae, T. Tsujii
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Broadcast versus precise ephemerides: a multi-GNSS perspective
GPS Solutions, 2014A consistent analysis of signal-in-space ranging errors (SISREs) is presented for all current satellite navigation systems, considering both global average values and worst-user-location statistics. The analysis is based on 1 year of broadcast ephemeris messages of the Global Positioning System (GPS), GLONASS, Galileo, BeiDou and QZSS collected with a ...
Montenbruck, Oliver +2 more
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International Journal of Satellite Communications, 1994
AbstractFrequency stability analysis of on‐orbit Navstar clocks is performed by the Naval Research Laboratory using both the broadcast and the precise post‐processed ephemerides. The phase offset between the Navstar clock and the reference clock is computed from pseudorange measurements obtained by dual‐frequency GPS receivers at the five GPS monitor ...
Thomas B. McCaskill +3 more
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AbstractFrequency stability analysis of on‐orbit Navstar clocks is performed by the Naval Research Laboratory using both the broadcast and the precise post‐processed ephemerides. The phase offset between the Navstar clock and the reference clock is computed from pseudorange measurements obtained by dual‐frequency GPS receivers at the five GPS monitor ...
Thomas B. McCaskill +3 more
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Signal-in-Space Range Error Analysis of the Simulated Broadcast Ephemerides for the Kepler System. [PDF]
, 2022 Kepler navigation system is a DLR’s proposal for the next generation of GNSS. It comprises a constellation of Galileo-like satellites augmented by Low Earth Orbit (LEO) satellites and exploits optical inter-satellite links (OISLs) for constellation-wide clock synchronization, communication and precise ranging.
Michalak, Grzegorz +5 more
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Measurement Science and Technology
Abstract Autonomous onboard orbit determination of low earth orbit (LEO) satellite using global navigation satellite system (GNSS) broadcast ephemerides has become increasingly important for time-critical space geodetic applications, such as GNSS radio occultation and satellite altimetry. With the full operational
Xiang Chen +6 more
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Abstract Autonomous onboard orbit determination of low earth orbit (LEO) satellite using global navigation satellite system (GNSS) broadcast ephemerides has become increasingly important for time-critical space geodetic applications, such as GNSS radio occultation and satellite altimetry. With the full operational
Xiang Chen +6 more
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Block-Bootstrap Evaluation of Galileo HAS Orbit Corrections Against Broadcast Ephemerides
Abstract The Galileo High Accuracy Service (HAS) provides State Space Representation (SSR) corrections for satellite orbits, clocks and biases, enabling high-accuracy GNSS applications. While several studies have assessed HAS-based positioning, fewer works have focused on a rigorous statistical evaluation of HAS-corrected orbits ...U. Robustelli, M. Cutugno, G. Pugliano
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BDS-3 and GPS/Galileo integrated PPP using broadcast ephemerides
GPS Solutions, 2022Guo Chen +4 more
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Broadcast vs. precise GPS ephemerides: a historical perspective
GPS Solutions, 2003David L. M. Warren, John F. Raquet
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