A Tropospheric Signal Delay Model for Radio Astronomical Observations

被引：4

作者：

Duev, D. A. ^{[1
,2
]}

Pogrebenko, S. V. ^{[2
]}

Molera Calves, G. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow, Russia

[2] Joint Inst VLBI Europe, Dwingeloo, Netherlands

[3] Aalto Univ, Metsahovi Radio Observ, Helsinki, Finland

来源：

ASTRONOMY REPORTS | 2011年 / 55卷 / 11期

关键词：

MAPPING FUNCTIONS; VLBI;

D O I：

10.1134/S1063772911110011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work, a three-dimensional refraction model is proposed, which allows one to calculate the delay of signal due to the Earth's troposphere-the main source of error limiting the accuracy of modern radio astronomical observations. The method of raytracing through the three-dimensional troposphere (numerical weather model) is used. The results of VLBI observations of spacecraft are presented, showing that, in terms of accuracy, the developed model performs at the level of the best modern analogues and in some cases even exceeds them.

引用

页码：1008 / 1015

页数：8

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