VLBI observations of GNSS-satellites: from scheduling to analysis.
VLBI observations of GNSS-satellites: from scheduling to analysis.
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DOI：
10.1007/s00190-016-0992-8
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发表时间：
2017
影响因子：
4.4
通讯作者：
Lovell J
中科院分区：
文献类型：
--
作者：
Plank L;Hellerschmied A;McCallum J;Böhm J;Lovell J
30.大地测量界多年来一直在讨论利用甚长基线干涉测量技术观测卫星的可能性，观测的对象或者是全球导航卫星系统的现有卫星，或者是专门用于实现空间联系的卫星。这些观测是利用澳大利亚在霍巴特和塞杜纳的望远镜进行的，这是第一次综合了所有必要的步骤：规划观测（自动安排）、数据的相互关系和产生一系列适合于随后进行大地测量分析的时间延迟观测值。我们报告的发展和现有的例行观测和数据处理，侧重于技术开发的适应。目的是使用大地测量VLBI中经常使用的方法。进行了一系列长达6小时的测试实验，以改进各阶段的观察结果，并揭示仍有待解决的新问题。新开发的程序和程序现在可以进行更多的观察。如果进一步发展，这将具有直接应用于专用空间联络卫星观测的前景。
The possibility of observing satellites with the very long baseline interferometry (VLBI) technique has been discussed for several years in the geodetic community, with observations of either existing satellites of the global navigation satellite systems or of satellites dedicated to realise a space tie. Such observations were carried out using the Australian telescopes in Hobart and Ceduna which, for the first time, integrated all the necessary steps: planning the observations (automated scheduling), correlation of the data and the generation of a series of time delay observables suitable for a subsequent geodetic analysis. We report on the development of new and the adaptation of existing routines for observing and data processing, focusing on technology development. The aim was to use methods that are routinely used in geodetic VLBI. A series of test experiments of up to six hours duration was performed, allowing to improve the observations from session to session and revealing new problems still to be solved. The newly developed procedures and programs now enable more observations. Further development assumed, this bears the prospect of being directly applied to the observation of dedicated space-tie satellites.