Range Gate Pull-Off Mainlobe Jamming Suppression Approach with FDA-MIMO Radar: Theoretical Formalism and Numerical Study

With the development of an electronic interference technique, self-defense jammer can generate mainlobe jamming using range gate pull-off (RGPO) strategy, which brings serious performance degradation target tracking for ground-based warning radar. In this paper, a RGPO suppression approach is proposed, with frequency diverse array multiple-input multiple-output (FDA-MIMO) The differs from true in slant range, thus it possible to identify jammings by exploiting transmit beampattern diversity FDA-MIMO A devised joint transmit–receive beamforming group sectors. studied, consideration practical time-delay jamming. Simulation examples are provided verify effectiveness proposed approach.