Positional accuracy evaluation of CORS VRS, PPK, static GPS + GLONASS, and total station surveys in urban areas
In urban environments, GNSS positioning is challenging due to signal blockage and multipath effects of surrounding buildings. This study evaluates the compatibility of CORS-VRS, PPK and static GNSS methods with total station measurements to investigate their accuracy in urban conditions. For this p...
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Society of Land Measurements and Cadastre from Transylvania (SMTCT)
2025-02-01
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| Series: | Nova Geodesia |
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| Online Access: | https://novageodesia.ro/index.php/ng/article/view/286 |
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| author | Atinç PIRTI Mehmet EREN |
| author_facet | Atinç PIRTI Mehmet EREN |
| author_sort | Atinç PIRTI |
| collection | DOAJ |
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In urban environments, GNSS positioning is challenging due to signal blockage and multipath effects of surrounding buildings. This study evaluates the compatibility of CORS-VRS, PPK and static GNSS methods with total station measurements to investigate their accuracy in urban conditions. For this purpose, measurements were conducted in Esenler, Istanbul on 30 September 2020. Three measurement points (P1, P2 and P3) with varying levels of obstruction were selected. The results demonstrate that static GNSS measurements (with horizontal and vertical components below 5 mm and 11 mm, respectively) are the method with the highest positional accuracy. Conversely, PPK measurements exhibited larger deviations (0.857 m (X), 0.356 m (Y), and 0.780 m (Z) in P1, 0.302 m (X), 0.215 m (Y), and 0.255 m (Z) in P1, and 0.516 m (X), 0.284 m (Y), and 0.374 m (Z) in P3. Conversely, CORS-VRS measurements exhibited deviations ranging from 13 cm to 34 cm at baseline distances when compared to total station results. The findings demonstrate that while CORS-VRS and PPK can achieve sub-decimeter accuracy, they are significantly affected by multipath and signal blockages in dense urban environments. Thus, GNSS-based positioning in urban settings should be supplemented with total station surveys when high precision (1-2 cm) is required.
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| format | Article |
| id | doaj-art-61805ff160c648d2be3cfaa9acdac18f |
| institution | DOAJ |
| issn | 2810-2754 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Society of Land Measurements and Cadastre from Transylvania (SMTCT) |
| record_format | Article |
| series | Nova Geodesia |
| spelling | doaj-art-61805ff160c648d2be3cfaa9acdac18f2025-08-20T02:50:00ZengSociety of Land Measurements and Cadastre from Transylvania (SMTCT)Nova Geodesia2810-27542025-02-015110.55779/ng51286Positional accuracy evaluation of CORS VRS, PPK, static GPS + GLONASS, and total station surveys in urban areasAtinç PIRTI0Mehmet EREN1Yildiz Technical University, Department of Surveying Engineering, Davutpasa Campus, 34220 Esenler, IstanbulYildiz Technical University, Department of Surveying Engineering, Davutpasa Campus, 34220 Esenler, Istanbul In urban environments, GNSS positioning is challenging due to signal blockage and multipath effects of surrounding buildings. This study evaluates the compatibility of CORS-VRS, PPK and static GNSS methods with total station measurements to investigate their accuracy in urban conditions. For this purpose, measurements were conducted in Esenler, Istanbul on 30 September 2020. Three measurement points (P1, P2 and P3) with varying levels of obstruction were selected. The results demonstrate that static GNSS measurements (with horizontal and vertical components below 5 mm and 11 mm, respectively) are the method with the highest positional accuracy. Conversely, PPK measurements exhibited larger deviations (0.857 m (X), 0.356 m (Y), and 0.780 m (Z) in P1, 0.302 m (X), 0.215 m (Y), and 0.255 m (Z) in P1, and 0.516 m (X), 0.284 m (Y), and 0.374 m (Z) in P3. Conversely, CORS-VRS measurements exhibited deviations ranging from 13 cm to 34 cm at baseline distances when compared to total station results. The findings demonstrate that while CORS-VRS and PPK can achieve sub-decimeter accuracy, they are significantly affected by multipath and signal blockages in dense urban environments. Thus, GNSS-based positioning in urban settings should be supplemented with total station surveys when high precision (1-2 cm) is required. https://novageodesia.ro/index.php/ng/article/view/286CORS-VRSGNSS accuracypositioning precisionPPKStatic GNSSTotal station |
| spellingShingle | Atinç PIRTI Mehmet EREN Positional accuracy evaluation of CORS VRS, PPK, static GPS + GLONASS, and total station surveys in urban areas Nova Geodesia CORS-VRS GNSS accuracy positioning precision PPK Static GNSS Total station |
| title | Positional accuracy evaluation of CORS VRS, PPK, static GPS + GLONASS, and total station surveys in urban areas |
| title_full | Positional accuracy evaluation of CORS VRS, PPK, static GPS + GLONASS, and total station surveys in urban areas |
| title_fullStr | Positional accuracy evaluation of CORS VRS, PPK, static GPS + GLONASS, and total station surveys in urban areas |
| title_full_unstemmed | Positional accuracy evaluation of CORS VRS, PPK, static GPS + GLONASS, and total station surveys in urban areas |
| title_short | Positional accuracy evaluation of CORS VRS, PPK, static GPS + GLONASS, and total station surveys in urban areas |
| title_sort | positional accuracy evaluation of cors vrs ppk static gps glonass and total station surveys in urban areas |
| topic | CORS-VRS GNSS accuracy positioning precision PPK Static GNSS Total station |
| url | https://novageodesia.ro/index.php/ng/article/view/286 |
| work_keys_str_mv | AT atincpirti positionalaccuracyevaluationofcorsvrsppkstaticgpsglonassandtotalstationsurveysinurbanareas AT mehmeteren positionalaccuracyevaluationofcorsvrsppkstaticgpsglonassandtotalstationsurveysinurbanareas |