Generally, high-resolution imaging for highly squinted synthetic aperture radar (SAR) data is
a difficult problem due to large range migration. Thus, when trying to solve this nontrivial …

This paper addresses an autofocusing technique for highly squinted airborne synthetic
aperture radar (SAR) imaging. In highly squinted mode, the phase errors resulting by …

For highly squinted synthetic aperture radar (SAR) imaging, the Omega-k algorithm is
generally accepted as an effective focusing processor. However, the performance of the …

Due to the accuracy limitation of the navigation system, deviations between the real
trajectory and the measured one appear inevitably in airborne synthetic aperture radar …

High-resolution airborne synthetic aperture radar imaging requires long synthetic aperture
time (LSAT). However, the LSAT invalidates the Fresnel approximation in the traditional …

For highly squinted synthetic aperture radar (SAR) imaging, the wavenumber domain SAR
processing algorithm is commonly accepted as an ideal solution to SAR focusing in the case …

In this letter, several important aspects are addressed for highly squinted synthetic aperture
radar data with subaperture (SA) processing. First, the influences of the reference linear …

For ultrahigh resolution synthetic aperture radar (SAR), azimuth spectrum aliasing limits the
application of frequency-domain autofocus algorithms. Therefore, time-domain autofocus …

An autofocus operation is an indispensable procedure to obtain well-focused images for
synthetic-aperture radar (SAR) systems without precise navigation devices. Three …

The study focuses on addressing the image defocusing issue caused by motion errors in
highly squinted Synthetic Aperture Radar (SAR). The traditional auto-focusing algorithm …