Network Differential GPS: Kinematic Positioning with NASA’s Internet-based Global Differential GPS

M. O. Kechine, C.C.J.M. Tiberius, H. van der Marel

Delft Institute of Earth Observation and Space Systems, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The Netherlands.

DOI:                 

Abstract

Recent developments in precise GPS positioning have concentrated on the enhancement of the GPS Network architecture towards the processing of data from permanent reference stations in real-time, and the extension of the DGPS service area to the continental and global scale. The latest Global Differential GPS, as introduced by JPL, allows for seamless positioning available across the world. This contribution presents the results of an independent experimental verification of decimeter kinematic positioning accuracy with NASA’s Global DGPS system. This verification was carried out in the Netherlands, by means of both a static and a kinematic test. The standard deviations of individual real-time positions were about 10 cm for the horizontal components and about 20 cm for the vertical component. The latency of the global corrective information in the kinematic test was generally 7 to 8 seconds and more than 99% of the global corrections were available with the nominal 1-second interval. These results confirm that single receiver kinematic positioning with decimeter accuracy is achievable by using facilities provided by the GDGPS system.

Keywords

Network Differential GPS, IGDG, kinematic positioning, real-time dm-accuracy

Conflicts of Interest

The authors declare no conflicts of interest.

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