PPP augmentation with current Galileo and BeiDou constellations

Abstract

This contribution mainly addresses PPP augmentation with current Galileo constellation. The GPS-only, GPS+Galileo, and GPS+Galileo+BDS PPP will be numerically studied with both single- and dual-frequency signals. The results show that the single-frequency GPS PPP solutions in obstructed situation can reach only meter level accuracy while GPS+Galileo and GPS+Galileo+BDS PPP solutions get 0.15m and 0.5m accuracy in horizontal and vertical direction, respectively. In dual-frequency kinematic PPP experiments, the GPS-only cannot provide centimeter solutions in obstructed case whereas the Galileo augmented PPP significantly improves the positioning accuracy up to centimeter in all three components.