Motion compensation/autofocus in airborne synthetic aperture radar: A review

J Chen, M Xing, H Yu, B Liang, J Peng… - IEEE Geoscience and …, 2021 - ieeexplore.ieee.org
Air-and spaceborne synthetic aperture radar (SAR) can provide a large number of high-
resolution images for microwave remote sensing applications, such as geoscience and …

An autofocus technique for high-resolution inverse synthetic aperture radar imagery

L Zhao, L Wang, G Bi, L Yang - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
For inverse synthetic aperture radar imagery, the inherent sparsity of the scatterers in the
range-Doppler domain has been exploited to achieve a high-resolution range profile or …

Enhanced ISAR imaging by exploiting the continuity of the target scene

L Wang, L Zhao, G Bi, C Wan… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
This paper presents a novel inverse synthetic aperture radar (ISAR) imaging method by
exploiting the inherent continuity of the scatterers on the target scene to obtain enhanced …

An autofocus algorithm for estimating residual trajectory deviations in synthetic aperture radar

L Ran, Z Liu, L Zhang, T Li, R Xie - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Due to the accuracy limitation of the navigation system, deviations between the real
trajectory and the measured one appear inevitably in airborne synthetic aperture radar …

Segmental aperture imaging algorithm for multirotor UAV-borne MiniSAR

Y Luomei, F Xu - IEEE Transactions on Geoscience and …, 2023 - ieeexplore.ieee.org
This article takes on the challenges of synthetic aperture radar (SAR) imaging for
miniaturized SAR (MiniSAR) onboard a multirotor unmanned aerial vehicle (UAV). Several …

[HTML][HTML] A HRWS SAR Motion Compensation Method with Multichannel Phase Correction

L Zhou, M Deng, J He, B Wang, S Zhang, X Liu, S Wei - Remote Sensing, 2024 - mdpi.com
The multichannel synthetic aperture radar (SAR) possesses the capability to acquire high-
resolution, wide-swath SAR imagery, which has great potential for application. However …

A Modified Iteration-Free SPGA Based on Removing the Linear Phase

Y Xie, Y Luan, L Chen, X Zhang - Remote Sensing, 2023 - mdpi.com
In traditional Stripmap SAR imaging, the platform motion error will bring the phase error in
the azimuthal direction to the image, which will have a series of effects on the imaging …

Minimum-entropy-based adaptive focusing algorithm for image reconstruction of terahertz single-frequency holography with improved depth of focus

Z Sun, C Li, X Gao, G Fang - IEEE Transactions on Geoscience …, 2014 - ieeexplore.ieee.org
In this paper, the defocus of a 2-D image reconstruction of targets illuminated by Gaussian
beams in terahertz (THz) single-frequency holography was studied. An analytical point …

Maneuvering target imaging and scaling by using sparse inverse synthetic aperture

G Xu, L Yang, G Bi, M Xing - Signal Processing, 2017 - Elsevier
In recent years, there have been increasing interests in addressing the issue of high-
resolution inverse synthetic aperture radar (ISAR) imaging from sparse aperture (SA) data …

Joint approach of translational and rotational phase error corrections for high‐resolution inverse synthetic aperture radar imaging using minimum‐entropy

G Xu, M Xing, L Yang, Z Bao - IET Radar, Sonar & Navigation, 2016 - Wiley Online Library
In high‐resolution inverse synthetic aperture radar (ISAR) imaging, the rotational motion of
the targets tends to introduce the time‐variant Doppler modulation in the echo, which acts as …