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View article: Review the IGS Strategy for Precise Point Positioning Applications
Review the IGS Strategy for Precise Point Positioning Applications Open
Within the IGS, it was agreed that Precise Point Positioning (PPP) based on satellite orbit and clock corrections of the IGS analysis centers allow a direct access to the IGS realization of the International Terrestrial Reference Frame (IT…
View article: BeiDou-3 orbit and clock quality of the IGS Multi-GNSS Pilot Project
BeiDou-3 orbit and clock quality of the IGS Multi-GNSS Pilot Project Open
Within the Multi-GNSS Pilot Project (MGEX) of the International GNSS Service (IGS), precise orbit and clock products for the BeiDou-3 global navigation satellite system (BDS-3) are routinely generated by a total of five analysis centers. T…
View article: Compatibility between the preliminary ITRF2020 solution and GNSS antenna phase center offsets
Compatibility between the preliminary ITRF2020 solution and GNSS antenna phase center offsets Open
<p>The release of the next International Terrestrial Reference Frame (ITRF) 2020 is based on the four geodetic techniques, namely Satellite Laser Ranging (SLR), Very Long Baseline Interferometry (VLBI), Global Navigation Satellite Sy…
View article: The CODE ambiguity-fixed clock and phase bias analysis products: generation, properties, and performance
The CODE ambiguity-fixed clock and phase bias analysis products: generation, properties, and performance Open
The generation and use of GNSS analysis products that allow—particularly for the needs of single-receiver applications—precise point positioning with ambiguity resolution (PPP-AR) are becoming more and more popular. A general uncertainty c…
View article: Review of recent GNSS modelling improvements based on CODEs Repro3 contribution
Review of recent GNSS modelling improvements based on CODEs Repro3 contribution Open
The Center for Orbit Determination in Europe (CODE) is contributing to the most recent reprocessing effort of the International GNSS Service (IGS) with a triple-system solution including GPS (since 1994), GLONASS (since 2002) and Galileo (…
View article: Extension of the repro3 ANTEX file with BeiDou and QZSS satellite antenna pattern
Extension of the repro3 ANTEX file with BeiDou and QZSS satellite antenna pattern Open
<p>During the preparations for the International GNSS Service (IGS) contribution to the next reference frame, called repro3, the disclosed pre-launch chamber calibrated Galileo satellite antenna pattern were analyzed. Those tests rev…
View article: Sub-daily polar motion from GPS, GLONASS, and Galileo
Sub-daily polar motion from GPS, GLONASS, and Galileo Open
We derive an empirical model of the sub-daily polar motion (PM) based on the multi-GNSS processing incorporating GPS, GLONASS, and Galileo observations. The sub-daily PM model is based on 3-year multi-GNSS solutions with a 2 h temporal res…
View article: GNSS scale determination using calibrated receiver and Galileo satellite antenna patterns
GNSS scale determination using calibrated receiver and Galileo satellite antenna patterns Open
The reference frame of a global terrestrial network is defined by the origin, the orientation and the scale. The origin of the ITRF2014 is defined by the ILRS long-term solution, the orientation by no-net rotation conditions w.r.t. the pre…
View article: Adopting the empirical CODE orbit model to Galileo satellites
Adopting the empirical CODE orbit model to Galileo satellites Open
In 2012 the Center for Orbit Determination in Europe (CODE) joined the Multi-GNSS-EXtension project (MGEX) of the International GNSS Service (IGS). Since the end of 2013 the CODE MGEX contributions were based on combined solutions of five …
View article: System-specific systematic errors in earth rotation parameters derived from GPS, GLONASS, and Galileo
System-specific systematic errors in earth rotation parameters derived from GPS, GLONASS, and Galileo Open
The earth rotation parameters (ERPs) are time-variable global geodetic parameters with a purely geophysical origin. Theoretically, the estimates of these parameters should be independent of the satellite constellation used in GNSS processi…
View article: Overview of CODE’s MGEX solution with the focus on Galileo
Overview of CODE’s MGEX solution with the focus on Galileo Open
We present an update on the multi-GNSS orbit and clock solution (COM), the CODE analysis center provides to the International GNSS service (IGS) in the frame of the multi-GNSS extension (MGEX). In recent years substantial progress was achi…
View article: CODE IGS reference products including Galileo
CODE IGS reference products including Galileo Open
<p>The International GNSS service (IGS) has been providing precise reference products for the Global Navigation Satellite Systems (GNSS) GPS and (starting later) GLONASS since more than 25 years. These orbit, clock correction, coordi…
View article: CODE repro3 product series for the IGS
CODE repro3 product series for the IGS Open
CODE, the Center for Orbit Determination in Europe, is a joint venture of the following four institutions: • Astronomical Institute, University of Bern (AIUB), Bern, Switzerland • Federal Office of Topography swisstopo, Wabern, Switzerland…
View article: Network Effects and Handling of the Geocenter Motion in Multi‐GNSS Processing
Network Effects and Handling of the Geocenter Motion in Multi‐GNSS Processing Open
Both, the network configuration and the way of terrestrial reference frame (TRF) realization, affect the global geodetic products delivered from the Global Navigation Satellite Systems (GNSS) data processing. The purpose of this study is t…