A Simulator for Three-dimension Radar Imaging of Complex Targets

This paper presents a simulator that is able to generate three-dimension (3D) radar images of complex targets with acceptable time and computation consumption. Our method is based on Graphical Electromagnetic Computing (GRECO). The target (for example, a scissor) is modeled with the 3D-modeling software, and its illuminated surface is defined and obtained by graphics hardware, then the high-frequency radar cross section (RCS) for each scattering component is computed through Physical Optics (PO) which contributes to the final simulation image through a transfer function determined by the imaging system. The correctness of the approach is verified by the simulation result of ideal medal plate. And we also proved its promising prospect for further job in detection or recognition through the analysis of distributions of intensity, maximum projections in various direction and typical features of radar imaging.