A spoofing detection method for motion receiver using single antenna

The direction of arrival (DOA) technique is the most effective mean of spoofing detection, but it is high hardware complexity and cannot be applied to motion vectors. In order to suppress this problem, a method based on carrier phase double-difference detection of single antenna which is used in linear motion vector is introduced. This method uses the difference of distance between GPS satellites and spoofers to the receivers, and makes the detection by carrier phase double-difference which only needs single antenna. The model of carrier phase double-difference of single antenna is established, and the binary hypothesis test of spoofing is given based on the model. In the end, theoretical analysis and simulative results prove the effectiveness of the proposed method. The results indicate that the longer displacement distance of the receiver antenna is, the better spoofing detection performance of the proposed method is; the closer to spoofer from the receiver antenna is, the better spoofing detection performance of the proposed method is; the more vertical between DOA and antenna displacement direction is, the better spoofing detection performance of the proposed method is.