Utilization of the PPP method for precise positioning of the aircraft in air navigation

The article presents the reliability assessment of determining the Cessna 172 aircraft coordinates during an in-flight test conducted around the EPDE military airport in Dęblin, Poland. Target coordinates of the Cessna 172 aircraft were determined using the PPP precision positioning method for code-phase GPS observations. The coordinates of the Cessna 172 aircraft in the XYZ geocentric system were computed using the IBGE-PPP and CSRS-PPP software. In the article, the of the Cessna 172 aircraft coordinate (x, y, z) difference was determined on the basis of the IBGE-PPP and CSRS-PPP solutions. The mean X coordinate difference value of the Cessna 172 aircraft is -0.18 m, and the RMS error equals 1.24 m. The mean Y coordinate difference value of the Cessna 172 aircraft is 0.91 m, and the RMS error equals 1.25 m. The mean Z coordinate difference value of the Cessna 172 aircraft is -0.21 m, and the RMS error equals 0.46 m. The RMS-3D coordinate precision parameter was also calculated in the article.