In this work, the performance and efficiency of variations of two autofocus algorithms for
backprojection algorithm (BPA) synthetic aperture radar (SAR) are evaluated and compared …

Autofocus techniques for synthetic aperture radar (SAR) can improve the image quality
substantially. Their high computational complexity imposes a challenge when employing …

Autofocus method is a vital technology for high resolution and wide swath airborne Synthetic
Aperture Radar (SAR) imaging. The autofocus algorithms via phase errors estimation and …

Autofocus techniques for synthetic aperture radar (SAR) enable high image quality in case
of suboptimal flight trajectories. However, the computational effort for image formation is …

Fast Factorized Back-projection (FFBP) is a new way to fix the high computation problem in
Back-projection (BP) but it still keeps high-resolution and strong adaptability in synthetic …

Autofocusing technique is an indispensable step for linear array SAR (LASAR) three-
dimensional (3-D) high quality imaging. However, the existing autofocus methods used for …

For spotlight mode synthetic aperture radar (SAR) autofocusing, the traditional full-aperture
phase gradient autofocus (PGA) algorithm might suffer from performance degradation in the …

Circular synthetic aperture radar (CSAR) can obtain higher image resolution and more
target information through 360° observation of the target. However, CSAR is often subject to …

In this paper, a new autofocus algorithm is presented for back-projection (BP) image
formation of synthetic aperture radar (SAR) imaging. The approach is based on maximizing …

For airborne spotlight mode synthetic aperture radar (SAR) autofocusing, the residual range
cell migration (RRCM) results in performance degradation. An improved inverse filtering (IF) …