THE SELECTION OF GROUND STATIONS FOR IGS PRODUCTS

The selection of ground stations is one of the essential process of IGS (International GNSS Service) products. High quality GPS data should be collected from the globally distributed ground stations. In this study, we investigated an effect of ground station network selection on GPS satellite epheme...

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Bibliographic Details
Published in:Journal of astronomy and space sciences 2007-12, Vol.24 (4), p.417-430
Main Authors: Jung, Sung-Wook, Baek, Jeong-Ho, Bae, Tae-Suk, Jo, Jung-Hyun, Cho, Sung-Ki, Park, Jong-Uk
Format: Article
Language:English
Subjects:
ground station optimization
orbit determination
satellite navigation system
space geodesy
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Summary:The selection of ground stations is one of the essential process of IGS (International GNSS Service) products. High quality GPS data should be collected from the globally distributed ground stations. In this study, we investigated an effect of ground station network selection on GPS satellite ephemeris. The GPS satellite ephemeris obtained from the twelve ground station networks were analyzed to investigate the effect of selection of ground stations. For data quality check, the observations, the number of cycle slips, and multipath of pseudoranges for L1 and L2 were considered. The ideal network defined by Taylor-Karman structure and SOD (Second Order Design) were used to obtain the optimal ground station network.
ISSN:2093-5587
2093-1409
DOI:10.5140/JASS.2007.24.4.417