A CZT-based continuous varying PRF polar format algorithm for highly squinted spotlight SAR

X Qiu, C Li, J Li, X Zhao, Y Wang - 2015 IEEE International …, 2015 - ieeexplore.ieee.org
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 …

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) …

Nonuniform sampling PFA for squint spotlight SAR imaging

H Xu, D Guo, J Li - 2011 IEEE International Geoscience and …, 2011 - ieeexplore.ieee.org
This paper improved polar format algorithm (PFA) based on nonuniform azimuth sampling
for squint spotlight synthetic aperture radar (SAR) imaging. The range resampling for …

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 …

A two-step wide-scene polar format algorithm for high-resolution highly-squinted SAR

X Nie, W Lei, L Zhuang - IEEE Geoscience and Remote …, 2022 - ieeexplore.ieee.org
Traditional polar format algorithm (PFA) is widely used in high-resolution and highly-
squinted (HRHS) synthetic aperture radar (SAR) systems, because of its unique decoupling …

[HTML][HTML] 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 …

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 …

Polar format algorithm for spotlight bistatic SAR with arbitrary geometry configuration

J Sun, S Mao, G Wang, W Hong - Progress In Electromagnetics Research, 2010 - jpier.org
This paper presents an effective Polar Format Algorithm (PFA) for spotlight bistatic synthetic
aperture radar (SAR) with arbitrary geometry configuration. Nonuniform interpolation and …

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 …

A quadtree beam-segmenting based wide-swath SAR polar format algorithm

X Nie, L Zhuang, S Shen - IEEE Access, 2020 - ieeexplore.ieee.org
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 …