2008•Journal of Systems Engineering and ElectronicsRequires access

Geometric dilution of precision for GPS single-point positioning based on four satellites

Huihui Wang, Zhan Xingqun, Zhang Yanhua

Abstract

To improve the positioning accuracy in GPS point positioning, the geometric dilution of precision (GDOP) including HDOP, VDOP, TDOP, PDOP is commonly considered. The properties of the DOP for the GPS satellite navigation system are studied and the coordinate system is improved in order to decrease the amount of variables. In the end, by simulation and discussing the results, the corresponding conclusions are presented.

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Available abstract

Key concepts: Dilution of precision, Global Positioning System, Precise Point Positioning, Computer science, Geodesy, Point (geometry), Satellite, Coordinate system