Spoofing is the most dangerous threat of the GNSS infrastructure. Main goal of meaconing is to mis¬lead the receivers tracking and sending wrong informa¬tion about the signal position. The normal receiver is not conscious about this attack, and it acquires the counterfeit or mislead signal and discards the authentic signals. The rapid diffusion of GNSS location based applications which involve in large set of human activities makes the navigation system infrastructure very vulnerable against malicious attacks, which aim to disrupt the functionalities for illegal purposes. Considering into this scenario, ef-ficient and computationally efficient detection and mitiga¬tion techniques are present in this paper in order to counteract spoof¬ing and meaconing signals. The aim of this paper is to present possible and simple ap-proaches in the spoofing detection field. Signal affected by spoofing signals are considered and detection methods are described pointing out the principal steps and possible applications, and drawbacks are also considered.
GNSS, Spoofing, Meaconing, GPS
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