RCS Investigation of Tetrahedral Aligned Sphere Targets for Radar Positioning

This contribution presents the investigation of tetrahedral aligned sphere targets and their effect on radar measurements via sinograms. Here, the radar cross section (RCS) is evaluated in order to determine the distance and angle between radar and target for precise 3D industrial robot positioning. Therefore, the sinograms are simulated by a shooting and bouncing ray approach with CST Microwave Studio. Two different targets are investigated: One with equally sized and and one with differently sized spheres. While the former has ambiguities, which only allow an angle estimation within a certain range, the latter reduces these ambiguousness towards zero.