A New Tracking and Imaging Algorithm of Moving Target for Ultra Wideband Through Wall Radar

The Ultra Wide-Band Short-Pulse (UWB-SP) radar used for detecting targets is a promising technique in fire rescue operations, police awareness, urban-warfare, life-threatening and other fields, and it can be used for noncontact measurement of the tracking and imaging of moving target behind walls. As the Shape Estimation Algorithm based on BST (Boundary Scattering Transform) and Extraction of Directly scattered waves (SEABED) algorithm (a new target localization and identification algorithm) based on the UWB-SP radar is not applicable for that application, this paper proposes a new algorithm to obtain the target shape imaging and track it synchronously using triangle localization method and the difference of time delay. In this paper, the proposed algorithm based on a system model built in the near field can effectively estimate the velocity and track of moving target with the imaging result. Simulation results show that the effect of the wall can be removed visibly and the purpose of the imaging and tracking of moving target can be realized well.