New Methodology for Computing the Aircraft’s Position Based on the PPP Method in GPS and GLONASS Systems

In the field of air navigation, there is a constant pursuit for new navigation solutions precise GNSS (Global Navigation Satellite System) positioning aircraft. This study aims to present results research on development method improving performance PPP (Precise Point Positioning) in GPS Positioning and GLONASS (Globalnaja Nawigacionnaja Sputnikovaya Sistema) systems navigation. The based linear combination individual position from systems. paper shows computational scheme geocentric XYZ coordinates an algorithm uses weighted mean determine resultant aircraft position. was tested kinematic data airborne experiment carried out with Seneca Piper PA34-200T at Mielec airport. A dual-frequency dual-system GPS/GLONASS receiver placed on-board plane, which made it possible record observations, were then used calculate aircraft’s CSRS-PPP software. calculated software model’s developed optimization algorithm. measurement weights are function number satellites inverse error square. obtained model verified RTK-OTF solution. As result research, presented solution’s accuracy better by 11–87% weighting as Moreover, using RTKLIB program, method’s increases 45% 82% square error. demonstrates high efficiency technology