A 2-D space-variant motion estimation and compensation method for ultrahigh-resolution airborne stepped-frequency SAR with long integration time

J Chen, M Xing, GC Sun, Z Li - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
For the ultrahigh-resolution airborne stepped-frequency synthetic aperture radar, very large
synthetic bandwidth and very long integration time may lead to a 2-D space-variant (SV) …

Two-step accuracy improvement of motion compensation for airborne SAR with ultrahigh resolution and wide swath

J Chen, B Liang, DG Yang, DJ Zhao… - … on Geoscience and …, 2019 - ieeexplore.ieee.org
The motion compensation (MOCO) for the airborne SAR with ultrahigh resolution and wide
swath is required to consider the range-dependent (RD) phase error. The RD phase error …

2-D spatially variant motion error compensation for high-resolution airborne SAR based on range-Doppler expansion approach

Y Ren, S Tang, P Guo, L Zhang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Motion errors are inevitable in real-world scenarios and introduce significant phase errors in
airborne synthetic aperture radar (SAR) imaging. Generally, these errors consist of the cross …

A novel motion compensation scheme for airborne very high resolution SAR

Z Chen, Z Zhang, Y Zhou, P Wang, J Qiu - Remote Sensing, 2021 - mdpi.com
Due to the atmospheric turbulence, the motion trajectory of airborne very high resolution
(VHR) synthetic aperture radars (SARs) is inevitably affected, which introduces range …

A Doppler ambiguity tolerated algorithm for airborne SAR ground moving target imaging and motion parameters estimation

J Yang, Y Zhang, X Kang - IEEE Geoscience and Remote …, 2015 - ieeexplore.ieee.org
This letter proposes an algorithm for airborne synthetic aperture radar (SAR) ground moving
target imaging (GMTIm) and motion parameters estimation (MPE), which is applicable in …

Efficient space-variant motion compensation approach for ultra-high-resolution SAR based on subswath processing

M Yang, D Zhu - IEEE Journal of Selected Topics in Applied …, 2018 - ieeexplore.ieee.org
Motion compensation (MOCO) is essential to obtain high-quality images for airborne
synthetic aperture radar (SAR). In the case of ultrahigh resolution, how to compensate the …

A novel motion parameter estimation algorithm of fast moving targets via single-antenna airborne SAR system

R Xu, D Zhang, D Hu, X Qiu… - IEEE Geoscience and …, 2012 - ieeexplore.ieee.org
A novel parameter estimation algorithm of fast moving targets using single-antenna airborne
synthetic aperture radar (SAR) databased on desampling and Radon transform (RT) is …

Improvements to the frequency division-based subaperture algorithm for motion compensation in wide-beam SAR

Y Li, X Liang, C Ding, L Zhou… - IEEE Geoscience and …, 2013 - ieeexplore.ieee.org
Motion compensation (MoCo) is pivotal in the processing of airborne synthetic aperture
radar (SAR) data. Motion errors are space variant according to the data acquisition …

Efficiency and robustness improvement of airborne SAR motion compensation with high resolution and wide swath

J Chen, B Liang, J Zhang, DG Yang… - … and Remote Sensing …, 2020 - ieeexplore.ieee.org
For airborne synthetic aperture radar (SAR) imaging with high resolution and wide swath,
the atmospheric turbulence may produce serious range-dependent (RD) motion error. To …

An airborne SAR moving target imaging and motion parameters estimation algorithm with azimuth-dechirping and the second-order keystone transform applied

J Yang, Y Zhang - IEEE Journal of Selected Topics in Applied …, 2015 - ieeexplore.ieee.org
In this paper, we propose an algorithm for airborne SAR moving target imaging and motion
parameters estimation in Doppler ambiguity situation with azimuth-dechirping and the …