2-D Wavenumber-Domain Autofocusing for High-Resolution Highly-Squinted SAR Imaging Based on Equivalent Broadside Model

Y Deng, GC Sun, L Han, Y Wang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The wavenumber domain algorithm is an ideal solution for high-resolution and highly
squinted (HRHS) synthetic aperture radar (SAR) imaging in the case of an ideal straight …

Robust autofocusing approach for highly squinted SAR imagery using the extended wavenumber algorithm

G Xu, M Xing, L Zhang, Z Bao - IEEE transactions on …, 2013 - ieeexplore.ieee.org
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 …

Focusing of maneuvering high-squint-mode SAR data based on equivalent range model and wavenumber-domain imaging algorithm

Z Li, J Chen, W Du, B Gao, D Guo… - IEEE Journal of …, 2020 - ieeexplore.ieee.org
Due to the complexity of high-squint synthetic aperture radar (SAR) mounted on
maneuvering platforms, the traditional geometric model and imaging algorithms cannot be …

Simultaneous range and cross-range variant phase error estimation and compensation for highly squinted SAR imaging

L Ran, R Xie, Z Liu, L Zhang, T Li… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
This paper addresses an autofocusing technique for highly squinted airborne synthetic
aperture radar (SAR) imaging. In highly squinted mode, the phase errors resulting by …

Focusing high-resolution highly-squinted airborne SAR data with maneuvers

S Tang, L Zhang, HC So - Remote Sensing, 2018 - mdpi.com
Maneuvers provide flexibility for high-resolution highly-squinted (HRHS) airborne synthetic
aperture radar (SAR) imaging and also mean complex signal properties in the echoes. In …

A modified range model and Doppler resampling based imaging algorithm for high squint SAR on maneuvering platforms

B Bie, Y Quan, GC Sun, W Liu… - IEEE Geoscience and …, 2019 - ieeexplore.ieee.org
There are two technical difficulties to overcome before obtaining a well-focused image from
high squint (HS) synthetic aperture radar (SAR) with constant acceleration. One is effective …

2-D Autofocus for High-Squint SAR Based on Affine Coordinate Back-Projection Algorithm

Y Lou, H Lin, Q Chen, M Xing, S Zhou… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
When synthetic aperture radar (SAR) works in high squint (HS) mode, the interpolation and
scaling operation of traditional frequency domain imaging algorithms will change the …

A Hybrid Chirp Scaling Algorithm for Squint Sliding Spotlight SAR Data Imaging

Y Guo, P Wang, Z Men, T He… - IEEE Geoscience and …, 2024 - ieeexplore.ieee.org
Squint spaceborne synthetic aperture radar (SAR) can significantly improve the ground
observation performance of platform sensor through flexible beam pointing; however, it is …

Extension of map-drift algorithm for highly squinted SAR autofocus

L Ran, Z Liu, T Li, R Xie, L Zhang - IEEE Journal of Selected …, 2017 - ieeexplore.ieee.org
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 …

Spaceborne high-squint high-resolution SAR imaging based on two-dimensional spatial-variant range cell migration correction

Z Ding, P Zheng, H Li, T Zhang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
High-squint imaging is an effective means to enhance the flexibility and coverage ability of
spaceborne synthetic aperture radar (SAR). Although existing imaging algorithms based on …