Multi-Receiver Deception Jamming Against SAR Using Frequency Diverse Array

This paper proposes a multi-receiver deception jamming approach against the synthetic aperture radar (SAR) using the frequency diverse array (FDA). Different from the traditional phased-array antennas, the FDA utilizes a slight frequency offset across elements, and thus multiple false targets are potentially generated in the range dimension of the SAR image. Moreover, utilizing the instantaneous slant distance difference between different receivers, the jammer can directly reduce the reliance on parameters determined by the SAR working mode such as the velocity and the squint angle of the SAR, which are hard to be obtained by the electronic reconnaissance. Such a new method can generate multiple predesigned false targets or scenes without knowing geometric parameters of the SAR. The effectiveness of the proposed method is validated by the experimental simulation results.