The European GNSS, Galileo, is currently in its\nin-orbit validation (IOV) phase where four satellites are\nfinally available for computing the user position. In this\nphase, the analysis of the measurements and position\nvelocity and time (PVT) obtained from the IOV satellites\ncan provide insight into the potentialities of the Galileo\nsystem. A methodology is suggested for the analysis of the\nGalileo IOV pseudorange and pseudorange rates collected\nfrom the E1 and E5 frequencies. Several days of data were\ncollected and processed to determine figures of merit such\nas root mean square and maximum errors of the Galileo\nobservables. From the analysis, it emerges that Galileo is\nable to achieve better accuracy than GPS. A thorough\nanalysis of the PVT performance is also carried out using\nbroadcast ephemerides. Galileo and GPS PVTs are compared\nunder similar geometry conditions showing the\npotential of the Galileo system.
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