Performance assessment of PPP-AR positioning and zenith total delay estimation with modernized CSRS-PPP

• Autorzy: Atiz Omer Faruk , Kalayci Ibrahim

Identyfikatory

DOI

10.2478/arsa-2021-0003

• Języki publikacji: EN

Abstrakty

EN

The precise point positioning (PPP) method has become more popular due to powerful online global navigation satellite system (GNSS) data processing services, such as the Canadian Spatial Reference System-PPP (CSRS-PPP). At the end of 2020, the CSRS-PPP service launched the ambiguity resolution (AR) feature for global positioning system (GPS) satellites. More reliable results are obtained with AR compared to the results with traditional ambiguity-float PPP. In this study, the performance of the modernized CSRS-PPP was comparatively assessed in terms of static positioning and zenith total delay (ZTD) estimation. Data for 1 month in the year 2019 obtained from 47 international GNSS service (IGS) stations were processed before and after modernization of the CSRS-PPP. The processes were conducted for GPS and GPS + GLONASS (GLObalnaya NAvigatsionnaya Sputnikovaya Sistema) satellite combinations. Besides, the results were analyzed in terms of accuracy and convergence time. According to the solutions, the AR feature of the CSRS-PPP improved the accuracy by about 50% in the east component for GPS + GLONASS configuration. The rootmean-square error (RMSE) of the ZTD difference between modernized CSRS-PPP service and IGS final troposphere product is 5.8 mm for the GPS-only case.

Słowa kluczowe

EN

ambiguity resolution; CSRS-PPP; precise point positioning; zenith total delay

• Wydawca: Centrum Badań Kosmicznych PAN ; De Gruyter
• Czasopismo: Artificial Satellites : Journal of Planetary Geodesy
• Rocznik: 2021
• Tom: Vol. 56, No. 2
• Strony: 18--34
• Opis fizyczny: Bibliogr. 48 poz., rys., tab.

Twórcy

autor

Atiz Omer Faruk

• Department of Geomatics Engineering, Necmettin Erbakan University, Konya, Turkey

autor

Kalayci Ibrahim

• Department of Geomatics Engineering, Necmettin Erbakan University, Konya, Turkey

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).