Galileo’nun GPS+GLONASS Tek Nokta Konum Belirlemeye Katkısı

Abstract

In addition to the legacy GPS and GLONASS, a new global emerging system, European Galileo became operational for positioning, timing, and navigation purposes. In this study, the contribution of the Galileo constellation to GPS+GLONASS combined single point positioning (SPP) is investigated. A one-week of data in 2019 (DOY: 274-280) and 25 IGS-MGEX stations are chosen to conduct GPS+GLONASS and GPS+GLONASS+Galileo SPP. The results indicate that average Root Mean Square Errors (RMSE) of northing, easting and, up components are improved by 11%, 16%, and 4%, respectively. It is also observed that maximum errors of GPS+GLONASS SPP are significantly reduced when adding Galileo constellation.