A genentic algorithm-based cross-correlated back projection scheme for UWB radar imaging

This paper presents a novel genetic algorithm (GA)- based cross-correlated back projection (CBP) scheme for the reconstruction of UWB radar images. CBP eliminates the smearing of radar images by cross correlating the array element outputs to the output of a reference element. So the performance of CBP depends largely on the selection of location of the reference element. In this work, GA is utilized to obtain the optimum location of the reference element. In comparison to standard CBP, this scheme produces images of superior quality with better cross-range resolution and smaller sidelobe levels. The performance of the new imaging algorithm is demonstrated on numerical examples.