Impact of meaconers on aircraft GNSS receivers during approaches
Impact des répéteurs GNSS sur les récepteurs d'avion en phase d'approche
Résumé
This paper develops a classification to quantify the impact of a meaconer on an aircraft GNSS receiver, from the tracking
loops up to the position estimation, during an SBAS-guided LPV-200 approach. Depending on the scenario, the impact of the
meaconer on the estimated position can be catalogued for each GNSS signal at a given epoch into one of the four following
situations - nominal, jamming, multipath or spoofing. In the nominal situation, the meaconer has no appreciable impact on
the aircraft position. In the jamming situation, the meaconer induces higher noise levels resulting in greater errors in the
position estimation than in the nominal situation. In the multipath situation, the meaconer effect on the position is similar to a
GNSS multipath error. In the spoofing situation, the meaconer adds a deterministic bias on a subset of PRNs that can lead to
significantly erroneous position estimations. Extensive simulations demonstrate that a meaconer with a high power and close to
the aircraft trajectory can degrade the GNSS receiver performance and provoke faulty estimations of the aircraft position, which
are not compliant with the civil aviation standards.
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