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Positioning using the precision galileo has service

Savchuk S., Grzegorzewski M., Gołda P., Kerker V.

Annual of Navigation

2024

No. 29

60--68

Galileo High Accuracy Service (HAS) is an augmentation of GNSS that provides users around the world with precise satellite corrections directly via the E6 Galileo signal. Galileo HAS corrections, complemented by the deviations of the Galileo HAS signals, enable the calculation of a very accurate solution in real time. PPP positioning performance results show that the combined Galileo and GPS solution can already achieve the full-service HAS accuracy target. The purpose of this study is to evaluate the benefits of HAS corrections on SPP and PPP for Galileo E1, E5a, E5b and E6, for GPS L1 and L2, and for GPS/Galileo L1/E1. Comparison of emitted HAS patches with final CODE products shows good performance. The impact of HAS on SPP is assessed in terms of mean and root mean square (RMS) errors at horizontal, vertical, and 3D positions.