Ultra fast static GNSS positioning with GPS and Galileo systems

Abstract

Scientific community has already carried out research concerning combining observations from separate GNSS systems. However, these studies were mostly related to loose combining approach. Two overlapping frequencies L1/E1 and L5/E5a in GPS/Galileo systems allow tightly combining observations in one mathematical model. In this paper, first results of the tightly combined GPS+Galileo fast precise positioning carried out at the UWM Olsztyn were presented. The experiment was based on the simulated data obtained from SPIRENT GSS7700/7800 hardware signal simulator. Research shows that application of the tightly combined GPS+Galileo observations gives improvement in the results of the precise positioning.[b]Keywords[/b]: satellite geodesy, GPS, Galileo, ultrafast precise positioning

Keywords

• satellite geodesy
• GPS
• GALILEO
• ultrafast precise positioning