This letter proposes a new motion compensation approach for high-squint and high-
resolution airborne spotlight synthetic aperture radar (SAR) integrated with polar format …

When the range migration caused by motion error exceeds the range cell resolution, the
performance of a conventional phase autofocus approach degrades. In this paper, a new …

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 …

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 …

The conventional polar format algorithm (CPFA) is widely used for synthetic aperture radar
(SAR) because of its simple and efficient operations. However, due to its wavefront curvature …

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 …

In this article, a new interpretation of the polar format algorithm (PFA) for general bistatic
spotlight synthetic aperture radar (SAR) imaging is presented. From the viewpoint of 2-D …

Spatial-variant motion compensation (MOCO) is critical for high resolution and highly
squinted airborne synthetic aperture radar (SAR) imaging. Conventional imaging strategies …

The nonuniform-interpolation polar format algorithm is developed for processing spotlight
SAR data with nonideal platform motions. Instead of two uniform interpolations for the …