Real-Time Interference Detection in Tracking Loop of GPS Receiver

Global Positioning System (GPS) spoofing could pose a major threat for GPS navigation ýsystems, so the GPS users have to gain a better understanding of the broader implications of ýGPS.ý In this paper, a plenary anti-spoofing approach based on correlation is proposed to distinguish spoofing effects. The suggested ýmethod can be easily implemented in tracking loop of GPS receiver. We will study a real-time spoof recognition ýwith a clear certainty by introducing a reliable novel metric. As a primary step, the proposed technique is ýimplemented in software receiver to prove the concept of idea in a multipath-free ýscenario. ýThree rooftop data sets, collected in our GPS laboratory, are used in the ýperformance assessment of the proposed method. The results indicate that investigated algorithm is ýable to perform a real-time detection in all date sets.