Accuracy of coordinate determinations of the network of protected zone points according to the results of GNSS observations
Abstract
The article examines errors of the planned position of the points of the educational and research site “Fortuna” of the Chernihiv Polytechnic National University (Ukraine), located in a forested area. Kinematic positioning has been performed using a GNSS receiver GeoMax Zenith 10/20 in real time mode. The network of permanent satellite GNSS stations System NET has been used as a coordinate basis. RTK Master Auxiliary Corrections (MAX) technology has been used to form the corrective amendments. The calculation of RTK corrections has been performed using the software package Leica GNSS Spider v4.3. The Transverse Mercator cartographic projection has been used to determine the flat rectangular coordinates in the USK-2000 system. The values of the coordinates determined in the RTK mode have been compared with the coordinates obtained by the method of electronic polygonometry, which are estimated to be 3 times more accurate. Coordinate differences have formed error vectors. As a result of analysis of the vector field, a stable tendency has been established: the deviation of the planned coordinates of the site points, determined by the method of GNSS-observations in real time mode and located in the forest park zone, in the direction of the base station.
Keyword : GNSS-observations, Real Time Kinematic, base station, points of polygonometry, error research, USC 2000
This work is licensed under a Creative Commons Attribution 4.0 International License.
References
Catania, P., Comparetti, A., Febo, P., Morello, G., Orlando, S., Roma, E., & Vallone, M. (2020). Positioning accuracy comparison of GNSS receivers used for mapping and guidance of agricultural machines. Agronomy, 10(7). https://doi.org/10.3390/agronomy10070924
Grejner-Brzezinska, D. A., Kashani, I., Wielgosz, P., Smith, D. A., Spencer, P. S. J., Robertson, D. S., & Mader, G. L. (2007). Efficiency and reliabil-ity of ambiguity resolutionin network-based real-time kinematic GPS. Journal Survey Engineering, 133(2), 56–65. https://doi.org/10.1061/(ASCE)0733-9453(2007)133:2(56)
Grejner-Brzezinska, D. A., Kashani, I., & Wielgosz, P. (2005). On accuracy and reliability of instantaneous network RTK as a function of network geometry, station separation, and data processing strategy. GPS Solutions, 9(3), 212–225. https://doi.org/10.1007/s10291-005-0130-1
Kabinet Ministriv Ukrainy. (2004). Postanova Kabinetu Ministriv Ukrainy vid 22 veresnia 2004 r. No. 1259 “Deiaki pytannia zastosuvannia heodezychnoi systemy koordynat” (Ofitsiinyi visnyk Ukrainy, 2004 r., No. 38, st. 2514). (in Ukrainian).
Kheloufi, N., & Niati, A. (2020). Effect of spatial correlation on the performances of modernized GPS and Galileo in relative positioning. Geodesy and Cartography, 46(1), 89–97. https://doi.org/10.3846/gac.2020.11009
Pepe, M. (2018). Cors architecture and evaluation of positioning by low-cost GNSS receiver. Geodesy and Cartography, 44(2), 36–44. https://doi.org/10.3846/gac.2018.1255
Lim, S., & Rizos, C. (2008). An optimal design for server-based RTK systems. In Proceedings of the 21st International Technical Meeting of the Satel-lite Division of the Institute of Navigation (pp. 2969–2974).
Sergeev, A. G., & Krovin, V. V. (2000). Metrologiya: Uchebn. posob. dlya vuzov. Logos (in Russian).
System Solutions official site. (n.d.). Koordynaty bazovykh stantsii merezhi v USK-2000. https://systemnet.com.ua/usk-2000-ukr/
Tereshchuk, O., Korniyenko, I., Kryachok, S., Malik, T., Belenok, V., & Skorintseva, I. (2019). Research of systematic errors according to the results of processing satellite observations by software complexes. News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Ge-ology and Technical Sciences, 4(436), 199–212 (in Ukrainian). https://doi.org/10.32014/2019.2518-170X.115
Tereshchuk, O. I. (2017). Metodyka realizatsii suputnykovykh tekhnolohii kinematychnoho pozytsionuvannia dlia heodezychnykh polihoniv. Tekhnich-ni nauky ta tekhnolohii, (2), 236–245 (in Ukrainian). https://doi.org/10.25140/2411-5363-2017-2(8)-236-245
Yanchuk, O., & Shulgan, R. (2020). Prognostic evaluation of the impact of restricted horizon visibility on the accuracy of position (coordinates) ob-tained with GNSS based on empirical data. Geodesy and Cartography, 46(2), 67–74. https://doi.org/10.3846/gac.2020.11191