The performance assessment of Precise Point Positioning (PPP) under various observation conditions

•Precise Point Positioning (PPP) technique is one of the methods widely used for point positioning in recent years.•The urbanization has an effect on PPP technique.•Session duration should be taken into account for positioning accuracy in PPP technique.•Satellite visibility has an effect on PPP accu...

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Bibliographic Details
Published in:Measurement : journal of the International Measurement Confederation 2021-02, Vol.171, p.108780, Article 108780
Main Authors: Bulbul, Sercan, Bilgen, Burhaneddin, Inal, Cevat
Format: Article
Language:English
Subjects:
Accuracy
AUSPOS
Global navigation satellite system
Global positioning systems
GPS
Online PPP services
Performance assessment
Public private partnerships
Residential areas
Residential buildings
Satellite systems
Stations
Studies
Urbanization
Visibility
Web services
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Summary:•Precise Point Positioning (PPP) technique is one of the methods widely used for point positioning in recent years.•The urbanization has an effect on PPP technique.•Session duration should be taken into account for positioning accuracy in PPP technique.•Satellite visibility has an effect on PPP accuracy. Two different methods, absolute and relative positioning, are used in determining point positions with GNSS techniques. Precise Point Positioning (PPP) technique, which is one of the absolute positioning methods, is a powerful position determination method. In this study, the accuracy of PPP has been investigated in terms of session durations, online web services, satellite visibility and urbanization. For this purpose, three of CORS-Tr stations were selected in residential, semi-residential and non-residential areas. Consecutive 31-day data of these stations for the year 2019 were downloaded from server. The 31-day consecutive coordinates were obtained by sending the downloaded RINEX data to AUSPOS. The average of these coordinates was considered as true quantity value. Then, the RINEX data were binned four groups as 1 h, 2 h, 4 h, 6 h. The binned data were evaluated with web-based online PPP services (CSRS-PPP, magicGNSS, APPS) and compared with the true quantity value. In conclusion, it was seen that the best result was obtained in the non-residential area and CSRS-PPP yielded the most accurate results for all session durations.
ISSN:0263-2241
1873-412X
DOI:10.1016/j.measurement.2020.108780