Abstract: With the widespread use of ADS-B (automatic dependent surveillance-broadcast), security issues of which have also attracted widespread attention. Aiming at its susceptible deception jamming, a jamming detection method is proposed. Firstly, a group of variables are calculated to indicate the DOA changing trend according to message report. Secondly, with the help of signals received by array antenna, another group of variables are computed as the reflection of DOA changing. Finally, Pearson correlation coefficient of the two sets of variables are employed to distinguish whether the target is a real aircraft or a ghost. On this basis, a source consistency detection method is proposed to decrease the false detection rate. Compared with other methods, the current one shows robustness to the amplitude and phase error of the array without consideration of signal爷s origin, thus is suitable for engineering practice.

Key words: ADS-B, spoofing attack, array antenna, correlation coefficient, gain and phase error