Abstract:

In order to solve the problem of clock jumping of the target receiver in the GNSS retransmission deception interference mode, which will result in the failure of jamming, a modified method based on jammer array is proposed in this paper. The jammer array could be set as regular hexagon, and the benefit is that wherever the target is, there will be one optimal jammer which can interfere with the target effectively. The simulation study is carried out to make sure the optimal space between neighbouring jammers. The conclusion shows that the optimal space mentioned above is 17 km. If the condition is fulfilled, the jamming from the jammer array will not lead to any clock jumping of the target receiver and the problem that the interference is easy to be identified is solved certainly.

Key words: multi-antenna system, GNSS retransmission deception interference mode, jammer array, robust adaptive prediction