Janusz Ćwiklak 1, Kamil Krasuski 2, Marek Grzegorzewski 3

1Polish Air Force Univerisity, Faculty of Aviation

2Polish Air Force Univerisity, Faculty of Aviation

3Polish Air Force Univerisity, Faculty of Aviation

DOI: 10.1515/aon-2019-0011


The article presents the results of the aircraft Cessna 172 positioning based on navigation solutions in the GPS and EGNOS (SBAS) tracking mode. The article makes a comparison of coordinate readings of the Cessna 172 in the ellipsoidal BLh frame. The verification of the coordinates of the aircraft Cessna 172 was used to assess the reliability of the GNSS satellite technique in aviation. In a research test, the navigation data were recorded by the onboard receiver Thales Mobile Mapper during an air test performed over the military aerodrome EPDE in Dęblin. Judging by the conducted investigations, it is possible to conclude that the difference in BLh coordinates of the aircraft Cessna 172 on the basis of the GPS solution and EGNOS (SBAS) solution equals, respectively: from -0.5 m to +3 m for component B; and from -2 m to +6 m for component L; from approximately -11 m to over +1 m for component h. In addition, the paper defines factors of dilution of precision PDOP, based on the GPS and EGNOS (SBAS) solutions. The average value of the PDOP coefficient for a solution in the tracking GPS mode was 2.7, whereas in the EGNOS (SBAS) tracking mode, it was equal to 2.8.


GPS, EGNOS, RMS, air navigation, linear regression


[1] Banaszek K., Malarski M., Required naviation performance and risk of airport operations, Problemy eksploatacji, nr 4, pp. 71-78, 2009. (in Polish)
[2] Kadaj R., How to calculate the GPS measurements?, NAWI, dodatek GEODETY, nr 1 (19), pp. 10-13, 2009. (in Polish)
[3] Wierzbicki D., Krasuski K., Estimation of rotation angles based on GPS data from a UX5 Platform, Measurement Automation Monitoring, Nov. 2015, vol. 61, no. 11, pp. 516-520.
[4] Krasuski K., Application the GPS code observations in BSSD method for recovery the position of the aircraft, Journal of Automation, Mobile Robotics & Intelligent Systems, vol. 11, no. 3, pp. 45-52, 2017, DOI: 10.14313/JAMRIS_3-2017/27.
[5] Ćwiklak, J., Jafernik, H., The monitoring system for aircraft and vehicles of public order services based on GNSS, Annual of Navigation, no. 16, pp. 15-24, 2010.
[6] Hejmanowska B., Palm Rodolphe, Oszczak S., Ciećko A., Validation of methods for measurement of land parcel areas, Draft final report, AGH University of Science and Technology, pp. 111-113, 2005.
[7] Maciuk K., DOP coefficients in GNSS observations, Budownictwo i Architektura, vol. 14, nr 1, pp. 65-72, 2015. (in Polish)
[8] Grunwald G., Ciećko A., Oszczak S., Kaźmierczak R., Grzegorzewski M., Ćwiklak J., The application of EGNOS system in aircrafts monitoring referred to Safety-of-Life service activation, Aparatura Badawcza i Dydaktyczna, nr 3, pp. 133-142, 2011. (in Polish)
[9] Przestrzelski, P., Bakuła, M., Performance of real time network code DGPS services of ASG-EUPOS in north-eastern Poland, Technical Sciences, 17(3), 2014, 191-207.

[10] Wierzbicki D., Determination of Shift/Bias in Digital Aerial Triangulation of UAV Imagery Sequences, IOP Conf. Series: Earth and Environmental Science vol. 95, World Multidisciplinary Earth Sciences Symposium (WMESS 2017), doi: 10.1088/1755-1315/95/3/032033, pp. 1-9, 2017.
[11] Jafernik H., Krasuski K., Michta J., Assessment of suitability of radionavigation devices used in air, Scientific Journal of Silesian University of Technology. Series Transport, 2016, 90, 99-112. ISSN: 0209-3324. DOI: 10.20858/sjsutst.2016.90.9. (in Polish)