Frequency Diverse MIMO Radar Sparse Imaging Using Annihilating Filter

Existing sparse recovery techniques usually require target to be located on the calculated grid at the very beginning in FD-MIMO radar, otherwise they would fail. In this paper, we propose a sparse imaging method to deal with on-grid and off-grid scatterers by operating simultaneous annihilating filter (SAF) in range dimension and then applying annihilating filter (AF) in angle dimension. Simulation results confirm the effectiveness of our method.