Orthorectified polar format algorithm for generalized spotlight SAR imaging with DEM

R Hu, BSMR Rao, M Alaee-Kerahroodi… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
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 …

Refocusing and zoom-in polar format algorithm for curvilinear spotlight SAR imaging on arbitrary region of interest

R Hu, X Li, TS Yeo, Y Yang, C Chi… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
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 …

Widefield Parametric Polar Format Algorithm for Spotlight SAR Imaging

Z Meng, L Zhang, L Chen - IEEE Journal of Selected Topics in …, 2023 - ieeexplore.ieee.org
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 …

A parameter-adjusting polar format algorithm for extremely high squint SAR imaging

Y Wang, J Li, J Chen, H Xu… - IEEE transactions on …, 2013 - ieeexplore.ieee.org
The polar format algorithm (PFA) is a wavenumber domain imaging method for spotlight
synthetic aperture radar (SAR). The classic fixed-parameter PFA employs interpolation …

Extended Polar Format Algorithm and Video-SAR Image Generation Scheme for Very High-Resolution Curvilinear Spotlight SAR

C Yang, F Zhao, Y Deng, K Liu, F Zhao… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Curvilinear spotlight synthetic aperture radar (CSSAR) has a high degree of freedom and
can be used for 3-D imaging and video SAR (ViSAR) persistent imaging. The direct and …

Extended Polar Format Algorithm (EPFA) for High-Resolution Highly Squinted SAR

P Guo, F Wu, A Wang - Remote Sensing, 2023 - mdpi.com
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 …

Improved Parametric Polar Format Algorithm for High-Squint and Wide-Beam SAR Imaging

Z Meng, L Zhang, G Wang, J Lu - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
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 …

Fast factorized backprojection algorithm for one-stationary bistatic spotlight circular SAR image formation

H Xie, S Shi, D An, G Wang, G Wang… - IEEE Journal of …, 2017 - ieeexplore.ieee.org
In this paper, a fast factorized backprojection (FFBP) algorithm is proposed for the one-
stationary bistatic spotlight circular synthetic aperture radar (OS-BSCSAR) data processing …

The polar format imaging algorithm based on double chirp-Z transforms

Y Tang, MD Xing, Z Bao - IEEE Geoscience and Remote …, 2008 - ieeexplore.ieee.org
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) …

An improved PFA with aperture accommodation for widefield spotlight SAR imaging

B Fan, Y Qin, P You, H Wang - IEEE Geoscience and Remote …, 2014 - ieeexplore.ieee.org
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 …