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- Title
ANALYSIS OF THE REAL TIME MEASUREMENT PRESITION IN RIGA.
- Authors
Balodis, Jānis; Plotnikovs, Sergejs; Silabriedis, Gunārs
- Abstract
EUPOS-RIGA permanent DGNSS station network is a subset of European Position Determination System EUPOS® which covers very large area of Europe. DGNSS static survey was performed in 366 sites within the EUPOS-RIGA reference network. After omitting the outliers of the positions of ortophoto map 344 survey results were analysed. The session length 7-10 minutes in each site. The primary aim of DGNSS static survey was to perform a quality control of recently produced ortophoto map in Riga city area. The static surveying average RMS 0.8 cm in plane position and 1.02 cm in vertical position. Map discrepancies Mean value detected 15.9 cm and standard deviation 8.1 cm, median 15.0cm. In order to check the eventual multypath the RTK survey were performed in 166 sites previously measured in static mode. Network solution of all 5 EUPOS-RIGA base stations were applied. The RTCM corrections were obtained via GSM GPRS. Results were achieved in very short field work time - in 5 - 10 seconds. RTK survey precision in comparison with static survey 0.9 cm, standard deviation 0.8 cm. Real time RTK surveying precision in plane in EUPOS-RIGA environment is 2 cm for 90 % occasions.
- Subjects
EUROPE; REAL-time clocks (Computers); REAL-time computing; GEOMATICS; DIGITAL mapping; SURVEYING (Engineering)
- Publication
Geomatics, 2008, Issue 3, p16
- ISSN
1691-4341
- Publication type
Article