Abstract Galileo satellite navigation system has begun to provide initial services. GAL-201 and GAL-202, which did not enter the scheduled orbit, have broadcast navigation messages as well. Based on the measured data of MGEX, the positioning performance of the current Galileo system is evaluated and analyzed. The results show that: 1) Galileo standard point positioning (SPP) can reach positioning accuracy 2 m in horizontal, 4 m in vertical; 2) GAL-201 and GAL-202 can now be used as SPP solvers. After their introduction, the average positioning availability increases by 10% and reaches more than 80%; 3) when the observation time is 3 hours, Galileo precise point positioning (PPP) can only reach an accuracy of 5 cm in horizontal,7 cm in vertical. However, with the increase in observation time, accuracy gradually improves. When the observation time is 24 hours, the horizontal accuracy is better than 1 cm, and the vertical accuracy is better than 3 cm.
DING He,LIU Shuai,SUN Fuping et al. Single Positioning Performance Assessment and Analysis of Galileo Satellite Navigation System in the Initial Operation Phase[J]. jgg, 2018, 38(10): 1038-1042.
DING He,LIU Shuai,SUN Fuping et al. Single Positioning Performance Assessment and Analysis of Galileo Satellite Navigation System in the Initial Operation Phase[J]. jgg, 2018, 38(10): 1038-1042.