Conventional polar format algorithm (PFA) and its variations normally assume an ideal
imaging geometry of a linear flight path, which cannot counteract the non‐uniformity of …

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 …

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) …

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

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 …

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 …

Due to its computational efficiency, the polar format algorithm (PFA) is considered by many
to be the workhorse for airborne synthetic aperture radar (SAR) imaging. PFA is …

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 …

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 …

Spotlight SAR is an efficiency way to obtain high resolution radar imagery. The classic polar
format algorithm (PFA) is the widely used method for spotlight SAR imagery reconstruction …