The article of record as published may be found at http://dx.doi.org/1088/0266-5611/29/5/050301Because of their ability to operate without regard to day, night or weather conditions, radar
systems are ubiquitous in remote sensing operations and are used in a wide variety of
commercial and military applications. High resolution radar imaging, however, is a remote
sensing subcategory that requires raw radar data to be collected over an artificially extended
aperture that is much larger than the radar receiving antenna and processed to create a
reflectivity image of a scene (typically by backprojection methods). These synthetic aperture
radar imaging (SAR) methods have been in use for over 50 years and, while the methodology
for simple radar imaging is quite mature, there are still many active research programs seeking
to extend the quality of—and information obtained from—SAR images
