Two-dimensional Time-delay Jamming Method Based on SAR Trajectory

Aiming at the problem that the false moving target generated by the traditional synthetic aperture radar-ground moving target (SAR-GMTI) jamming signal generation method is easy to be identified, a new way to control the false moving target’s displacement by two dimensions time-delay is proposed. First, based on image processing of synthetic aperture radar imaging system, the slow-time delay is produced elaborately to locate the false moving target exactly in the azimuth dimension. Then, the fast-time delay is produced according to the pre-set distance between the false moving target and the jammer in the range dimension. Theoretical analysis and simulation experiments show that the proposed method can control the location of the false target well in multichannel SAR-GMTI detection and so that the false target is hard to be distinguished.