Abstract
The paper describes and presents a new calculation strategy for the determination of the aircraft’s resultant position using the GPS (Global Positioning System) SPP (Single Point Positioning) code method. The paper developed a concept of using the weighted average model with the use of measuring weights to improve the quality of determination of the coordinates and accuracy of GPS SPP positioning. In this research, measurement weights were used as a function of the number of GPS satellites being tracked, and geometric PDOP (Position Dilution of Precision) coefficient. The calculations were made using navigation data recorded by two independent GPS receivers: Thales Mobile Mapper and Topcon HiPerPro. On the basis of the obtained results, it was found that the RMS (Root Mean Square) accuracy of positioning for XYZ geocentric coordinates was better than 1.2% to 33.7% for the weighted average method compared to a single GPS SPP solution. The proposed approach is therefore of practical application in air navigation to improve the quality of aircraft positioning.
Highlights
In the 21st century, the GNSS (Global Navigation Satellite System) satellite technology has become a common method of aircraft positioning in the field of air navigation and air transport [1,2,3,4]
10 to the Chicago Convention currently allows the use of the GNSS satellite technique in aviation for the purpose of air operations within the systems: GPS and GLONASS (Globalnaya Navigacionaya Sputnikovaya Sistema) as GNSS autonomous navigation systems, certified by the International Civil Aviation Organization (ICAO)
It should for the results presented in the paper, the weighted average model was used for the speed range from be noted that for the results presented in the paper, the weighted average model was used for the 0 to 80 m/s [28]
Summary
In the 21st century, the GNSS (Global Navigation Satellite System) satellite technology has become a common method of aircraft positioning in the field of air navigation and air transport [1,2,3,4].The framework of the application, operation, and implementation of GNSS satellite technology in aviation has been clearly defined by the International Civil Aviation Organization (ICAO) [5]. 10 to the Chicago Convention currently allows the use of the GNSS satellite technique in aviation for the purpose of air operations within the systems: GPS and GLONASS (Globalnaya Navigacionaya Sputnikovaya Sistema) as GNSS autonomous navigation systems, certified by the ICAO. In the case of GNSS systems, only GPS and GLONASS are certified for general use in civil aviation. It should be emphasized that the GPS and GLONASS systems are fully operational and provide continuous satellite positioning for their users around the globe, 24 h a day. The certification of the GPS and GLONASS navigation systems in civil aviation includes parameters such as accuracy, availability, integrity, and continuity. In accordance with the ICAO recommendation, the accuracy of determining the position of an aircraft with the use of a GPS navigation system must not exceed 17 m for navigation
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