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J. P. V. Zaupa

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Open access Oct 2026

Assessing Galileo ionosphere-free combinations: impacts of contrasting equatorial ionospheric conditions

This study investigates the impact of Galileo ionosphere-free (IF) dual-frequency combinations on the performance of Precise Point Positioning (PPP). Four IF combinations were analyzed: E1–E5a, E1–E6, E1–E5b, and E1–E5 (AltBOC). The analysis was conducted using 60 days of GNSS data from seven Brazilian stations located...

J. P. V. Zaupa, D. B. M. Alves, J. Monico et al. · 0 citations

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