Low-Cost Procedure for Radar-Imaging Simulation

A low-cost radar-imaging procedure is presented in this work. The method starts from a surface-current-density solution obtained from a simulation at a given frequency. Under these conditions, the geometry is efficiently subdivided into cells, using an octree-based decomposition. The procedure assigns to each cell the reflectivity given by the scattered fields in one direction due to the subdomains contained inside it. A high-resolution result is obtained that may be displayed either directly as a three-dimensional view, or else by projecting to represent two-dimensional images and profiles.