PERFORMANCE EVALUATION OF REAL TIME PRECISE POINT POSITIONING FOR MULTI-GNSS CONCEPT

Authors : Furkan KARLITEPE, Nursu Tunalıoğlu TUNALIOĞLU, Bahattin ERDOĞAN

Pages : 2231-2244

View : 38 | Download : 13

Publication Date : 2021-10-05

Article Type : Research Paper

Abstract :Today, Precise Point Positioning insert ignore into journalissuearticles values(PPP); technique is at the forefront of the Global Navigation Satellite Systems insert ignore into journalissuearticles values(GNSS); based point positioning in many applications. In particular, GNSS-based real-time PPP insert ignore into journalissuearticles values(RT-PPP); applications are significant for next-generation autonomous systems and geospatial industries. However, real-time corrections are required for these applications. Since 2003, International GNSS Service insert ignore into journalissuearticles values(IGS); has been preparing substructure for multi-GNSS applications within the context of multi-GNSS Experiment insert ignore into journalissuearticles values(MGEX); Project. In this study, two IGS MGEX stations were selected. These are equipped with GPS, GLONASS, Galileo and BeiDou systems’ receivers, and provide real-time solutions. Then, eight scenarios were generated depending on the different satellite combinations. These scenarios were examined in terms of convergence time and positioning accuracy, and the performance of different satellite systems in RT-PPP analyses was revealed. BNC v2.12.6 software was used for all analyses. Regarding the results, it can be concluded that using the different satellite combinations results in shortening the convergence time in RT-PPP and increasing the positioning accuracy.
Keywords : Multi GNSS, Real Time PPP RT PPP, IGS MGEX, combined positioning, convergence time

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