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Surveying co-located space-geodetic instruments for ITRF computation
Journal of Geodesy, 2004A new and comprehensive method is presented that can be used for estimating eccentricity vectors between global positioning system (GPS) antennas, doppler orbitography and radiopositioning integrated by satellites (DORIS) antennas, azimuth-elevation (AZ-EL) very long baseline interferometry (VLBI) telescopes, and satellite laser ranging (SLR) and lunar
SARTI P, SILLARD P, VITTUARI, LUCA
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Station coordinates from LLR analysis as contribution to the next ITRF
2022Lunar Laser Ranging (LLR) wird seit mehr als 43 Jahren durchgeführt. Der vorhandene Datensatz wird in einer kleinsten-Quadrate-Ausgleichung analysiert, um verschiedene Parameter des Erde-Mond-Systems zu bestimmen, z.B. den Mondorbit, die Erdorientierungsparameter, die Koordinaten der Retro-Reflektoren auf der Mondoberfläche und die Stationskoordinaten ...
Biskupek, Liliane +3 more
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SLR Requirements for the Development of the ITRF
2017ILRS Technical Workshop 2017; Riga, Latvia; October 2-5 ...
Pavlis, Erricos C. +1 more
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Incorporating LARES-2 SLR Data in ILRS Products for ITRF Development
2023Geodetic network infrastructure has evolved with increasing pace the past decade with remarkable additions of modern hardware, replacing aging, ‘80s vintage equipment throughout the globe. SLR needs however more than updating the network to deliver the accuracy required today. New and improved design “targets” must also be
Erricos C. Pavlis +2 more
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Study of common aperiodic displacements at ITRF co-location sites
2022<p>In historical versions of the International Terrestrial Reference Frame (ITRF), the time evolution of station positions was described by piece-wise linear models. These kinematic models have been extended with exponential and logarithmic functions in ITRF2014 to account for post-seismic displacements, then with annual and semi-annual ...
Maylis de La Serve +4 more
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The contribution of LARES in future ITRF developments
20122nd International LARES Science Workshop; Roma, Italy, 17-19 September ...
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ITRF Combination: Theoretical and Practical Considerations and Lessons from ITRF2008
2012The current ITRF construction is based on a two-step approach, combining input data provided by space geodesy techniques (VLBI, SLR, GPS, DORIS) in the form of time series of station positions and Earth Orientation Parameters. In the first step, the individual technique time series are rigorously stacked (accumulated) yielding long-term secular ...
Z. Altamimi, X. Collilieux, L. Métivier
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Rigorous combination to ensure ITRF and EOP consistency
2007The ITRF2005 is the first rigorous combination ensuring ITRF and EOP consistency, based on time series of station positions and Earth Orientation Parameters (EOPs). The objective of the presentation is the development of a combination strategy allowing to ensure the ITRF2005 and IERS 05 C04 consistency with time.
Altamimi, Z. +2 more
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The ITRF Beyond the “Linear” Model. Choices and Challenges
2008The current solution to the choice of a reference system for the coordinates of a global geodetic network is based on a linear model for the time evolution of station coordinates. The advantages and disadvantages between a mathematical approach and a physical approach to the optimal definition of a reference system for the International Terrestrial ...
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