Research Article

The Galileo Ground Segment Integrity Algorithms: Design and Performance

Algorithm 1

Performance drivers.
Quality of the raw measurement data (mainly carrier
phase noise and pseudorange multipath)
GSS synchronization error
Zenith tropospheric delay estimation error
GSS code/carrier incoherence
Presence of “Feared Events” as the scintillations or
GSS switches
GSS network distribution and availability