This paper improved polar format algorithm (PFA) based on nonuniform azimuth sampling
for squint spotlight synthetic aperture radar (SAR) imaging. The range resampling for …

This letter presents an improved polar format algorithm for nonlinear aperture and widefield
spotlight synthetic aperture radar imaging. In the proposed algorithm, the chirp z transform is …

The polar format algorithm (PFA) is a wavenumber domain imaging method for spotlight
synthetic aperture radar (SAR). The classic fixed-parameter PFA employs interpolation …

The polar format algorithm (PFA) is a classic algorithm for processing spotlight synthetic
aperture radar (SAR) data and is extensively used in practical applications nowadays …

Spotlight mode offers finer azimuth resolution than that achievable in stripmap mode using
the same physical antenna. The most popular spotlight synthetic aperture radar (SAR) …

For conventional polar format algorithm (PFA), because of the image distortion and defocus
caused by the plane-wave assumption, the effective imaging scene is bounded to a small …

Abstract For broadside spotlight Synthetic Aperture Radar (SAR) imaging, Polar Format
Algorithm (PFA) is applied widely as a kind of general interpolation algorithm. When PFA is …

The Polar Format Algorithm (PFA) is the most suitable imaging algorithm for high-resolution
and highly-squinted spotlight Synthetic Aperture Radar (SAR), but the approximation of …

Curvilinear spotlight synthetic aperture radar (CSSAR) has a high degree of freedom and
can be used for 3-D imaging and video SAR (ViSAR) persistent imaging. The direct and …

High-squint and wide-beam synthetic aperture radar (SAR) imaging is challenging for
current popular SAR imaging algorithms, because the severe spatial-variant motion error …