Development of a Combination Procedure for Celestial Reference Frame Determination
Development of a Combination Procedure for Celestial Reference Frame Determination
复制标题
天体参考系确定组合程序的开发
DOI:
10.1007/1345_2015_22
复制
发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Nothnagel A.
中科院分区:
文献类型:
--
作者:
Iddink A;Artz T;Nothnagel A.
The currently existing realizations of the International Celestial Reference System (ICRS), the International Celestial Reference Frame 1 (ICRF1) and ICRF2, are based on solutions estimated by one VLBI group. In contrast, the International Terrestrial Reference Frame (ITRF) is based on a multi-technique combination with contributions from different geodetic space techniques. Furthermore, these individual technique-specific solutions are generated in an intra-technique combination. To overcome the shortcomings of the past ICRF determination, one of the main goals for the upcoming realizations of the ICRS and ITRS is an entirely consistent and simultaneous computation of both frames. This includes inter- as well as intra-technique combinations.In this paper, a concept for the generation of a VLBI intra-combined CRF is shown. Focusing on consistency between different VLBI solutions is the first necessary step before passing on to multiple space techniques. The requirements, difficulties and individual steps of the intra-technique combination procedure are explained and highlighted. Furthermore, the concept of a combination software with several special features is illustrated. These features will become indispensable for the next ICRF and in any future investigations. Preliminary results confirm the proper functioning of the combination procedure and the corresponding software developed at the Institute of Geodesy and Geoinformation (IGG).
DOI:
--
发表时间:
2009-04
期刊:
--
影响因子:
--
作者:
E. Pavlis;V. Luceri;C. Sciarretta;R. Kelm
通讯作者:
E. Pavlis;V. Luceri;C. Sciarretta;R. Kelm
DOI:
10.2481/dsj.wds-011
发表时间:
2013
期刊:
Data Sci. J.
影响因子:
--
作者:
["D. Behrend
通讯作者:
["D. Behrend
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
S. Böckmann;T. Artz;A. Nothnagel;V. Tesmer
通讯作者:
V. Tesmer