Impact of GPS satellite antenna offsets on scale changes in global network solutions

被引：70

作者：

Ge, M ^{[1
]}

Gendt, G ^{[1
]}

Dick, G ^{[1
]}

Zhang, FP ^{[1
]}

Reigber, C ^{[1
]}

机构：

[1] Geoforschungszentrum Potsdam, Dept Geodesy & Remote Sensing, D-14473 Potsdam, Germany

来源：

GEOPHYSICAL RESEARCH LETTERS | 2005年 / 32卷 / 06期

关键词：

D O I：

10.1029/2004GL022224

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In this paper, we demonstrate that biases in the GPS satellite antenna phase center offsets could lead to scale biases in global network solutions, which change along with the observed satellite constellation. To validate the IGS standard offset values, satellite-specific offsets are estimated from GPS data and the network solutions are re-adjusted with these estimates. Both the estimated offsets and the readjusted network scales confirmed that the IGS standard offsets are significantly biased and produce scale changes of more than 1 ppb. From investigations of the offset inhomogeneities among satellites belonging to the same block type, it is strongly recommended that block-type-specific offsets used presently as IGS standard should be replaced by satellite-specific ones.

引用

页码：1 / 4

页数：4

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