An improved airborne multichannel SAR imaging method with motion compensation and range-variant channel mismatch correction

J Guo, J Chen, W Liu, C Li… - IEEE Journal of Selected …, 2020 - ieeexplore.ieee.org
To obtain a high-resolution and wide-swath image, the azimuth multichannel technique has
been widely used in synthetic aperture radar (SAR) systems to overcome the contradiction …

A novel channel errors calibration algorithm for multichannel high-resolution and wide-swath SAR imaging

H Huang, P Huang, X Liu, XG Xia… - … on Geoscience and …, 2021 - ieeexplore.ieee.org
For a spaceborne high-resolution and wide-swath synthetic aperture radar (HRWS-SAR)
system, it usually uses the digital beamforming technology. However, in practice, because of …

A channel calibration method based on weighted backprojection algorithm for multichannel SAR imaging

D Liang, R Wang, Y Deng, H Fan… - … and Remote Sensing …, 2019 - ieeexplore.ieee.org
In the multichannel synthetic aperture radar (SAR) systems, unavoidable channel errors will
significantly degrade the performance of the ambiguity suppression. To address this …

A postmatched-filtering image-domain subspace method for channel mismatch estimation of multiple azimuth channels SAR

GC Sun, J Xiang, Y Wang, Z Zhang… - … on Geoscience and …, 2021 - ieeexplore.ieee.org
Multiple azimuth channels (MACs) synthetic aperture radar (SAR) can theoretically achieve
high azimuth resolution and wide swath (HRWS). Nevertheless, in practice, channel …

Channel error effect analysis for reconstruction algorithm in dual-channel SAR imaging

F Xiao, Z Ding, Z Li, T Long - IEEE Geoscience and Remote …, 2019 - ieeexplore.ieee.org
Dual-channel synthetic aperture radar (SAR) system is promising in high-resolution wide-
swath (HRWS) imaging. However, gain and phase unbalance in the dual-channel SAR …

Clutter-cancellation-based channel phase bias estimation algorithm for spaceborne multichannel high-resolution and wide-swath SAR

C Fang, Y Liu, Z Li, T Yang… - IEEE Geoscience and …, 2016 - ieeexplore.ieee.org
When combined with digital beam-forming (DBF) techniques, multichannel synthetic
aperture radar (SAR) systems can achieve high-resolution and wide-swath SAR imaging …

A robust image-domain subspace-based channel error calibration and postimaging reconstruction algorithm for multiple azimuth channels SAR

J Xiang, GC Sun, Z Zhang, Y Zhang… - … on Geoscience and …, 2021 - ieeexplore.ieee.org
High resolution and wide-swath imaging always suffer channel errors of the multiple azimuth
channels (MACs) synthesis aperture radar (SAR). This article presents an image-domain …

[PDF][PDF] Channel error compensation for multi-channel SAR based on cost function

Z Lei, D Yun-kai, W Yu, Z Shi-chao, Y Liang - Journal of Radars, 2014 - edit.radars.ac.cn
Multi-channel in azimuth is a technique to achieve high-resolution as well as wide-swath in
Synthetic Aperture Radar (SAR) systems. Channel error is inevitable in multi-channel …

Azimuth Spectrum Reconstruction Algorithm Based on Updating Factors Regionally for Onboard Real-Time Multi-Channel SAR Imaging

P Zheng, Z Ding, L Li, H Li, Z Li - IEEE Journal of Selected …, 2023 - ieeexplore.ieee.org
Multichannel spaceborne synthetic aperture radar (SAR) is a useful approach to overcome
minimum antenna area constraint and achieve high-resolution and wide-swath imaging. For …

Robust channel phase error calibration algorithm for multichannel high-resolution and wide-swath SAR imaging

L Zhang, Y Gao, X Liu - IEEE Geoscience and Remote Sensing …, 2017 - ieeexplore.ieee.org
High-resolution and wide-swath synthetic aperture radar (SAR) imaging can be achieved by
the azimuth multichannel system. The minimum variance distortionless response (MVDR) …