Precise orbit determination and point positioning using GPS, Glonass, Galileo and BeiDou
TLDR
In this paper, the authors focus on the integration of GPS and Glonass in PPP, together with GPS and GNSS, and present a Kinematic post-processed multi-GNSS positioning results.Abstract:
State of the art Precise Point Positioning (PPP) is currently based on dual-frequency processing of GPS and Glonass navigation systems. The International GNSS Service (IGS) is routinely providing the most accurate or- bit and clock products for these constellations, allowing pointpositioningatcentimeter-levelaccuracy.Atthesame time, the GNSS landscape is evolving rapidly, with the deployment of new constellations, such as Galileo and BeiDou. The BeiDou constellation currently consists of 14 operational satellites, and the 4 Galileo In-Orbit Vali- dation (IOV) satellites are transmitting initial Galileo sig- nals. This paper focuses on the integration of Galileo and BeiDou in PPP, together with GPS and Glonass. Satellite orbits and clocks for all constellations are generated us- ing a network adjustment with observation data collected by the IGS Multi-GNSS Experiment (MGEX), as well as from Fugro proprietary reference station network. The or- bit processing strategy is described, and orbit accuracy for Galileo and BeiDou is assessed via orbit overlaps, for dif- ferent arc lengths. Kinematic post-processed multi-GNSS positioning results are presented. The benets of multi- constellation PPP are discussed in terms of enhanced availability and positioning accuracy.read more
Citations
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Journal ArticleDOI
The Multi-GNSS Experiment (MGEX) of the International GNSS Service (IGS) - Achievements, prospects and challenges
Oliver Montenbruck,Peter Steigenberger,Lars Prange,Zhiguo Deng,Qile Zhao,Felix Perosanz,Ignacio Romero,Carey Noll,Andrea Stürze,Georg Weber,Ralf Schmid,Ken MacLeod,Stefan Schaer +12 more
TL;DR: The status and tracking capabilities of the IGS monitoring station network are presented and the multi-GNSS products derived from this resource are discussed and the achieved performance is assessed and related to the current level of space segment and user equipment characterization.
Journal ArticleDOI
Precise point positioning with quad-constellations: GPS, BeiDou, GLONASS and Galileo
TL;DR: The results indicate that the system time differences of GPS with BeiDou, GLONASS and Galileo are very stable over time with STD values of better than 1.1 ns.
Journal ArticleDOI
BeiDou phase bias estimation and its application in precise point positioning with triple-frequency observable
TL;DR: In this paper, the least squares ambiguity decorrelation adjustment (LAMBDA) method is employed in ambiguity fixing based on the full variance-covariance ambiguity matrix generated from the raw data processing model.
Journal ArticleDOI
Review of code and phase biases in multi-GNSS positioning
TL;DR: A review of the research conducted until present on the subject of Global Navigation Satellite System (GNSS) hardware-induced phase and code biases is provided and illustrates how satellite phase biases inhibit the resolution of the phase ambiguity to an integer in PPP, while receiver phase biases affect multi-GNSS positioning.
Journal ArticleDOI
Uncovering common misconceptions in GNSS Precise Point Positioning and its future prospect
TL;DR: An overview of the current performance of PPP is provided as well as attempt to address some of the common misconceptions of this positioning technique—considered by many as the future of satellite positioning and navigation.
References
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Precise point positioning for the efficient and robust analysis of GPS data from large networks
TL;DR: This work determines precise GPS satellite positions and clock corrections from a globally distributed network of GPS receivers, and analysis of data from hundreds to thousands of sites every day with 40-Mflop computers yields results comparable in quality to the simultaneous analysis of all data.
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The International GNSS Service in a changing landscape of Global Navigation Satellite Systems
John Dow,Ruth Neilan,Chris Rizos +2 more
TL;DR: The IGS Strategic Plan and future directions of the globally-coordinated ~400 station IGS network, tracking data and information products, and outlines the scope of a few of its numerous working groups and pilot projects as the world anticipates a truly multi-system GNSS in the coming decade are discussed.
A guide to using international gnss service (igs) products
TL;DR: The International GNSS Service (IGS) provides precise GPS orbit products to the geodetic community with increased precision and timeliness as mentioned in this paper, which can be used to estimate the user position relative to one or multiple reference stations, using differenced carr ier phase observations and a baseline or network estimation approach.
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Short Note: A global model of pressure and temperature for geodetic applications
TL;DR: The empirical model GPT (Global Pressure and Temperature), which is based on spherical harmonics up to degree and order nine, provides pressure and temperature at any site in the vicinity of the Earth's surface as mentioned in this paper.
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Integer Ambiguity Resolution on Undifferenced GPS Phase Measurements and Its Application to PPP and Satellite Precise Orbit Determination
TL;DR: In this paper, the authors proposed a new method for fixing dual-frequency GPS ambiguities on undifferenced phase measurements either locally or globally, which can be used for precise point positioning of ground-based receivers and for precise orbit determination of low Earth orbiting satellites.