Radar reflector to increase the visibility of road users for automated driving systems

摘要

The invention relates to a radar reflector for an object surface, the geometry of which corresponds in particular to a small radar backscatter cross section, in order to increase its radar backscattering capacity and thus its visibility for automated driving systems. For this purpose, the radar reflector comprises at least one corner reflector array with a plurality of corner reflectors, which are arranged next to one another in a radar reflector surface following the object surface and are each designed to reflect radar beams back independently of the direction. A geometric structure of the individual corner reflectors and / or their spatial arrangement relative to one another are designed so that the resulting entire corner reflector array has a predetermined periodicity disturbance and / or a predetermined symmetry break and / or a predetermined modulation of an underlying strictly periodic corner reflector array , whereby a targeted broadening of interference maxima for radar waves reflected back at the radar reflector is effected to a predetermined enlarged angular range in which the signal intensity of the radar back reflection is preferably substantially homogeneous.