A GNSS Spoofing Signal Detection Method Based on MF-FrFT

The spoofing interference in Global Navigation Satellite Systems (GNSS) poses a significant threat to navigation security. This paper proposes an innovative GNSS spoofing signal detection method based on the Matched Filtering-Fractional Fourier Transform (MF-FRFT). By capitalizing on the inherent uncertainty in the dynamic characteristics between spoofing attackers and the victim receiver, our method effectively distinguishes between spoofing and authentic signals by analyzing their dynamic distinctions. Preliminary test results demonstrate the effectiveness of the proposed method.