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Proceedings Paper

The simulation of GTRF initial realization using GPS data
Author(s): Rong Zou; Chuang Shi; Zhimin Liu
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Paper Abstract

The GTRF initial realization and long-term maintenance follows the state of the art of TRF implementation. In this paper, the background of GTRF realization and the history of ITRF establishment were reviewed firstly. The precious experience gained from IERS activities is very helpful in GTRF realization, based on such situation, so the combined model and strategy for simulating GTRF initial realization by GPS data in the first stage of Galileo project were discussed and. And then 200 GPS Weeks data in SINEX format from three IGS analysis centers COD, ESA and GFZ was used as input data, we apply loose constraint, use the variance factor of weekly time series as apriori weight in the combination, and estimate station coordinate and 7 transformation parameters together. According to this simulation, the translation and scale parameters of three analysis centers are attained by weekly combined solution, while the rotation parameters are just estimated by the data from ESA. With these 7 transformation parameters, the GTRF can be initially realized by alignment to the ITRF by the GSS co-located with ITRF core stations.

Paper Details

Date Published: 28 October 2006
PDF: 8 pages
Proc. SPIE 6418, Geoinformatics 2006: GNSS and Integrated Geospatial Applications, 64180K (28 October 2006); doi: 10.1117/12.712612
Show Author Affiliations
Rong Zou, Wuhan Univ. (China)
Chuang Shi, Wuhan Univ. (China)
Zhimin Liu, Shandong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 6418:
Geoinformatics 2006: GNSS and Integrated Geospatial Applications
Deren Li; Linyuan Xia, Editor(s)

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