ACCURACY ANALYSIS OF EGNOS POSITIONING IN FLIGHT TEST IN AIR TRANSPORT
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Abstract
The purpose of this publication is to determine the accuracy of EGNOS positioning in aviation using correction data from the PRN120 and PRN124 geostationary satellites. The paper compiles GPS satellite data with EGNOS corrections to determine the position of aircraft and to determine positioning accuracy. The study used research material from an airborne experiment carried out in Mielec. GNSS data were elaborated in post-processing mode in the RKTLIB software, and numerical analyses were performed in Microsoft Excel. The average accuracy of EGNOS positioning using data from the PRN120 satellite for B, L, h coordinates was 0.9 m, 0.2 m and 0.3 m, respectively. In contrast, the average accuracy of EGNOS positioning using data from the PRN124 satellite is also similarly 0.9 m, 0.2 m and 0.3 m for BLh coordinates. It was observed that the positioning accuracy at a given measurement epoch is dependent on the number of GPS satellites observed. Furthermore, in the study, the accuracy of EGNOS positioning using corrections from the PRN120 and PRN124 satellites was compared with the certification requirements of the International Civil Aviation Organisation.
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References
Breeuwer E., Farnworth R., Humphreys P., Mcgregor A., Michel P., Secretan H., Leighton S. J., Ashton K. J., Flying EGNOS: The GNSS-1 Testbed, “Galileo’s World Paper”, January 2000, pp. 10–21.
Ciećko A., Grunwald G., The comparison of EGNOS performance at the airports located in eastern Poland, “Tech. Sci.”, 2017, 20.
Ciećko A., Grzegorzewski M., Ćwiklak J., Oszczak S., Jafernik H., Air navigation in eastern Poland based on EGNOS, In Proceedings of the Aviation Technology, Integration, and Operations Conference (ATIO 2013), Los Angeles, CA, USA, 12-14 August 2013; Red Hook: Curran, NY, USA, 2013, Volume 1.
Fellner A., Fellner R., Piechoczek E., Pre-flight validation of RNAV GNSS approach procedures for EPKT in “EGNOS APV Mielec project”, “Sci. J. Sil. Univ. Technol. Series Transp.”, 2016, 90.
Fellner A., Jafernik H., Airborne measurement system during validation of EGNOS/GNSS essential parameters in landing, “Rep. Geod. Geoinf.”, 2014, 96.
Grzegorzewski M., Navigating an aircraft by means of a position potential in three dimensional space, “Annual of Navigation”, 2005, 9.
Grzegorzewski M., Światek A., Ciećko A., Oszczak S., Ćwiklak J., Study of EGNOS safety of life service during the period of solar maximum activity, “Artificial Satellites”, 2012, 47.
http://rtklib.com/ [access: 14.08.2023].
http://www.egnos-pro.esa.int/ems/index.html [access: 14.08.2023].
https://egnos-user-support.essp-sas.eu/new_egnos_ops/sites/default/files/library/official_docs/egnos_os_sdd_in_force.pdf [access: 14.08.2023].
https://igs.org/mgex/constellations/ [access: 14.08.2023].
https://www.google.pl/intl/pl/earth/ [access: 14.08.2023].
https://www.gsa.europa.eu/european-gnss/what-gnss [access: 14.08.2023].
https://www.igs.org/data/#daily_data [access: 14.08.2023].
Jafernik H., Krasuski K., Michta J., Assessment of suitability of radionavigation devices used in air, “Sci. J. Sil. Univ. Technology. Ser. Transport”, 2016, 90.
Jafernik H., The test programme concerning aircraft positioning and traffic monitoring-Part II, “Sci. J. Sil. Univ. Technol. Ser. Transp.”, 2016, 93.
Kozuba J., Krasuski K., Ćwiklak J., Jafernik H., Aircraft position determination in SBAS system in air transport, In Proceedings of the 17th International Conference Engineering for Rural Development, Jelgava, Latvia, 23-25 May 2018.
Krasuski K., Lalak M., Gołda P., Mrozik M., Kozuba J., Analysis of the precision of determination of aircraft coordinates using egnos+sdcm solution, “Archives of Transport”, 2023, 67(3), pp. 105–117.
Krasuski K., The research of accuracy of aircraft position using SPP code method, PhD Thesis, Warsaw University of Technology, Warsaw, Poland, 2019.
Langley R.B., RTK GPS, “GPS WORLD”, 1998, September.
Oliveira J., Tiberius C., Landing: Added Assistance to Pilots on Small Aircraft Provided by EGNOS, In Proceedings of the Conference 2008 IEEE/ION Position, Location and Navigation Symposium, Monterey, CA, USA, 5-8 May 2008.
Osada E., Geodezja, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław 2001.
Próchniewicz D., Walo J., Quality Indicator for Ionospheric Biases Interpolation in the Network RTK, “Reports on Geodesy”, 2012, 92.
Specht C., Pawelski J., Smolarek L., Specht M., Dąbrowski P., Assessment of the Positioning Accuracy of DGPS and EGNOS Systems in the Bay of Gdansk Using Maritime Dynamic Measurements, “Journal of Navigation”, 2019, 72.
www.ulc.gov.pl/pl/prawo/prawo-mi%C4%99dzynarodowe/206-konwencje [access: 14.08.2023].