Experimental validation of a novel multistatic toroidal reflector nearfield imaging system for concealed threat detection

摘要

This paper presents the experimental results for a multistatic millimeter wave synthetic aperture radar (SAR) imaging radar for person security screening applications. By making use of an elliptical toroidal antenna, together with a low-cost, highly integrated, wide-bandwidth 57–64 GHz transceiver chipset, a multistatic imaging system is realized which simplifies the 3D imaging system to a less computationally intense 2D problem. The experimental data is in good agreement with the computed data, imaging not only conventional objects, but also challenging targets such as penetrable dielectrics and dihedrals.