Abstract:

Based on the fact that micro motion modulation can disturb synthetic aperture radar (SAR) effectively, an active jamming method for interferometric synthetic aperture radar (InSAR) is studied. Based on the signal models of InSAR signal processing, principles of the jamming are derived. Then, the relationship between key jamming parameters and the effect is analyzed. Furthermore， the conclusion is verified via simultion. The result shows that the jamming method can produce multiple false targets along the azimuth direction in InSAR imagry, which appear as “continuous barriers” or “discrete barriers”. The interval and length of the “barriers” rely on the paremeters of micro motion modulation, and the height of the “barriers” depends on the height of the jammer and the jamming power.