A GPS Spoofing Signal Detection Method Based on Low Frequency Power Spectrum

With the gradual enlargement of the application of satellite navigation spoofing signals in the field of anti-drone and other areas, spoofing signals have severely threatened the application of satellite navigation system. As spoofing signals exhibit strong concealment characteristics and difficulties in detection and identification, this study proposed a GPS deception signal detection method based on a low-frequency power spectrum. Data acquisition was achieved using a conventional satellite navigation spoofing signal receiving equipment, and a spoofing signal processing method based on low-frequency power spectrum and Kalman filtering was adopted. The method achieved a spoofing signal detection accuracy reaches 92.8%.