Single Point Positioning Using GPS, Galileo and BeiDou System

The increasing number of Galileo and BeiDou System (BDS) satellites allows them to be used successfully for positioning. In the presented paper, the data from two GNSS stations were used. Seven-day-long observational files were used. The Single Point Positioning method was used, along with proprietary software to compute coordinates. The test was divided into four parts. In the first test, only GPS was used to obtain position. In second part, a combination of GPS and Galileo was used. Next, a combination of GPS and the BDS and, finally, a combination of all three systems was used. The obtained results show that the combination of GPS and BDS allows more precise results to be obtained than if only GPS was used. For the GPS and Galileo combination, the precision was similar or worse than for GPS only. The combination of all three systems allows the most precise position to be obtained.