Measurement and simulation of the bistatic radar cross section of traffic signs for Vehicle-to-X communications

As an important scatterer in Vehicle-to-X (V2X) communication scenarios, traffic signs frequently appear along the roads and highly influence the radio channel. This paper presents a set of simulations and measurements for the bistatic radar cross section (RCS) of various realistic traffic signs. The simulations are performed by using full-wave analysis, whereas measurements are conducted at an open area test site at the national metrology institute of Germany. This investigation yields results for the bistatic RCS of traffic signs. It also focuses both on relevant simulation and measurement issues for interpreting their scattering behavior, the knowledge of which can improve the design of V2X communication systems.