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 …

In conventional polar format algorithm (PFA), the effective imaging scene is bounded to a
limited region near the reference point unless postprocessing is utilized. In a previous paper …

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) …

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

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 …

Traditional polar format algorithm (PFA) is widely used in high-resolution and highly-
squinted (HRHS) synthetic aperture radar (SAR) systems, because of its unique decoupling …

For widefield synthetic aperture radar (SAR) imaging, range-dependent motion errors and
range curvature are the main obstacle for range cell migration correction (RCMC) and …

The polar format algorithm (PFA) is a frequency-domain algorithm with high computational
efficiency especially for the high resolution imaging applications in wide-angle staring …

This paper presents an effective Polar Format Algorithm (PFA) for spotlight bistatic synthetic
aperture radar (SAR) with arbitrary geometry configuration. Nonuniform interpolation 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 …