Enhanced angle estimation accuracy of ultra compact radars inspired by a biomimetic approach

Abstract

The theoretical and experimental evaluation of using biomimetic antenna arrays (BMAAs) in an angle sensing radar system is presented. This ultra compact antenna system can enhance the angle estimation accuracy for radar systems which allow only small antenna separations due to the limited available space. A quality criterion will be given to indicate which BMAA parameters are necessary to achieve precise angle estimation accuracy. Radar measurements show a reduction in the RMS angle estimation error by a factor of 2 compared to conventional antenna systems of the same size.