Digital filters for synthetic aperture radar

Abstract

An organized approach is discussed for designing a set of optimal digital filters that can accommodate a wide range of synthetic-aperture radar (SAR) geometries. The basic SAR signal processing functions are reviewed since they are the basis for the filter design problems. Special digital filter optimality criteria are described that are tailored to the SAR environment. The results from recent filter design publications related to these criteria are summarized and examples are included to demonstrate the effectiveness of this approach to designing filters for SAR processors.<>