Development of a Combination Procedure for Celestial Reference Frame Determination

Development of a Combination Procedure for Celestial Reference Frame Determination
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天体参考系确定组合程序的开发

DOI:
10.1007/1345_2015_22
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Nothnagel A.
Nothnagel A.
中科院分区:
--
文献类型:
--
作者:
Iddink A;Artz T;Nothnagel A.

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相似文献

目前国际天球参考系(ICRS)、国际天球参考框架1(ICRF 1)和ICRF 2的实现都是基于一个VLBI小组估计的解。相比之下,国际地球参考框架是以多种技术组合为基础的,其中包括不同大地测量空间技术的贡献。此外,这些单独的特定于技术的解决方案是在技术内组合中生成的。为了克服过去ICRF确定的缺点,即将实现的ICRS和ITRS的主要目标之一是两个帧的完全一致和同时计算。本文提出了一种VLBI内组合CRF的概念。关注不同VLBI解决方案之间的一致性是转向多种空间技术之前的第一个必要步骤。的要求,困难和技术内组合程序的各个步骤进行了解释和强调。此外,一个组合软件的概念与几个特殊功能的说明。这些功能将成为下一个ICRF和任何未来的调查必不可少的。初步结果证实,在大地测量和地理信息研究所(IGG)开发的组合程序和相应的软件的正常运作。
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: --
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DOI: 10.2481/dsj.wds-011
发表时间: 2013
期刊: Data Sci. J.
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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