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Published in:
2005 | OriginalPaper | Chapter
Surface Modelling for GPS Satellite Visibility
Authors : George Taylor, Jing Li, David Kidner, Mark Ware
Published in: Web and Wireless Geographical Information Systems
Publisher: Springer Berlin Heidelberg
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This paper describes an automated method for predicting the number of satellites visible to a GPS receiver, at any point on the earth’s surface at any time. Intervisibility analysis between a GPS receiver and each potentially visible GPS satellite are performed using a number of different surface models and satellite orbit calculations. The developed software can work with various ephemeris data, and will compute satellite visibility in real-time. Real-time satellite availability prediction is very useful for mobile applications such as in-car navigation systems, personal navigations systems and LBS. The implement- tation of the method is described and the results are reported.