Micro Motion Modulation-Based Intermissive Sampling and Repeating Jamming Method

A kind of intermittent sampling and repeating jamming method based on micro motion modulation is proposed.The basic idea is that the jammer modulates affixal exponential phase increment of uniform rotation in the azimuth direction and processes intermittent sampling in the range direction of received radar signal,and then sends the jamming signal to the radar.Several key jamming parameters affecting the jamming effect on SAR is analyzed,jamming power and jam-signal ratio(JSR) are discussed,and simulation experiments are done according to the raw data as well.The result shows that the jamming method processes the echo partially coherently in the range direction and in the azimuth direction,and it can produce two-dimensional deceptive jamming or suppression jamming according to the key jamming parameters.Furthermore,it has some advantages in jamming power in comparison with conventional radio-frequency of suppression jamming.