Multipath model and ghosts localization for MIMO through-wall radar

In this paper, we consider the multipath ghost localization problem for multiple input multiple output (MIMO) real aperture through-wall radar (TWR). Based on the specular reflection hypothesis, we establish a multipath model for the scenario containing multiple parallel walls. By using geometric approximation method, we analyze the multipath ghosts' distribution characteristics. Simulation and real data experimental results prove the correctness of the proposed multipath model and the validity of the ghost localization approach.