ENHANCED, HIGH RESOLUTION RADAR IMAGING BASED ON ROBUST REGULARIZATION

We propose an enhanced image reconstruction method for spotlight-mode synthetic aperture radar (SAR). Our approach involves extension of feature preserving regu-larization techniques developed in other applications to the complex-valued SAR imaging problem. Compared to conventional image formation schemes, our approach oers increased resolvability of point-scatterers, enhance-ment of object shapes, reduced sidelobes and reduced speckle. We present the eectiveness of the proposed method on synthetic and real SAR scenes. 1