Time Frequency Analysis of two Dimensional Shift Frequency Jamming in Image of Synthetic Aperture Radar with Diving Platform Using Passive Defense

This paper proposed a method to create deception jamming against a SAR with diving platform. It is assumed jammer is stationary on the ground. SAR imaging, using two dimensional modulation frequency and creating false target in the desired coordinate, using the Range Doppler Algorithm and Based on the inherent relationship between time delay and frequency shift characteristics will be described. Finally this paper deducts general output form of shift frequency jamming in a SAR with diving platform. according to the simulation and using fitted expressed relationship can be conclude, if the jammer applied frequency shift radar signal, false target will distance from real target in Azimuth, and time delay causes a false target that is far away from real target in Rang dimension. From the results of this paper can be used in order to passive defense against radar threats, especially creating false target in SAR, of opposing force.