Multiple false-targets for countering ISAR based on sub-Nyquist sampling

The scatter-wave jamming (SWJ) can form false-target images and the repeater jamming based on sub-Nyquist sampling can produce fake point scatterers in the down-range. In this paper, it will be revealed that sub-Nyquist sampling intrinsically paves a method to generate multiple false-target images combined with SWJ. Radar pulses are under-sampled and retransmitted to the moving target which needs to be protected. It is demonstrated that deceptive false-target images will be induced after the target scatters the jamming signal back to the radar under the principles of bistatic ISAR configuration. A simulated telecommunication satellite model is adopted as the target which needs protection to verify the effectiveness of the jamming idea.