NLOS Targets Imaging with UWB Radar

This paper addresses a target imaging method for non-line-of-sight (NLOS) target shielded by surrounding in the L-junction scenario, exploiting ultra wideband (UWB) multiple-input multiple-output (MIMO) radar. We analyze the electromagnetic wave diffraction and reflection propagation in the L-junction scenario and establish the echo model. An NLOS target imaging method based on multipath exploitation of the diffraction and first-order reflection is proposed. Moreover, we also present a multiplication fusion method to suppress the high-order multipath ghosts. Finally, simulation results validate the validity of the multipath-exploitation-based target imaging method.