An improved azimuth reconstruction method for multichannel SAR using vandermonde matrix

P Cheng, J Wan, Q Xin, Z Wang, M He… - IEEE Geoscience and …, 2016 - ieeexplore.ieee.org
To overcome the contradiction between wide swath and high resolution in synthetic aperture
radar systems, a multichannel azimuth reconstruction method is investigated to …

Improved signal reconstruction algorithm for multichannel SAR based on the Doppler spectrum estimation

SS Zuo, M Xing, XG Xia, GC Sun - IEEE Journal of Selected …, 2016 - ieeexplore.ieee.org
For high-resolution wide-swath synthetic aperture radar imaging algorithms, signal
reconstruction is a key step. The steering vector plays an important role in signal …

Improved channel error calibration algorithm for azimuth multichannel SAR systems

X Guo, Y Gao, K Wang, X Liu - IEEE Geoscience and Remote …, 2016 - ieeexplore.ieee.org
Multichannel synthetic aperture radar systems in azimuth can effectively suppress azimuth
ambiguity and are promising in high-resolution wide-swath imaging. However, unavoidable …

Modified multichannel reconstruction method of SAR with highly nonuniform spatial sampling

N Liu, R Wang, Y Deng, S Zhao… - IEEE Journal of Selected …, 2017 - ieeexplore.ieee.org
The traditional filter bank algorithm (FBA) for a multichannel synthetic aperture radar (SAR)
system can provide an unambiguous recovery. However, the FBA may result in a seriously …

Channel phase mismatch calibration for multichannel in azimuth SAR imaging based on Eigen-structure method

F Huaitao, Z Zhimin, L Ning - 雷达学报, 2018 - radars.ac.cn
As one of the most important means to achieve a High-Resolution and Wide-Swath (HRWS)
imaging of the earth, multichannel in azimuth Synthetic Aperture Radar (SAR) have attracted …

Unambiguous reconstruction and high-resolution imaging for multiple-channel SAR and airborne experiment results

W Jing, M Xing, CW Qiu, Z Bao… - IEEE Geoscience and …, 2008 - ieeexplore.ieee.org
Azimuth ambiguity occurs in synthetic aperture radar (SAR) systems due to the well-known
constraint of minimum antenna area, particularly at high resolutions and wide swaths. A …

Channel error estimation methods for multichannel SAR systems in azimuth

T Yang, Z Li, Y Liu, Z Bao - IEEE Geoscience and Remote …, 2012 - ieeexplore.ieee.org
With the combination of digital beamforming (DBF) processing, multichannel synthetic
aperture radar (SAR) systems are promising in high-resolution wide-swath imaging …

A subspace algorithm of calibrating channel gain and phase errors for HRWS SAR imaging

L Zhang, Y Gao, K Wang, X Liu - 2017 IEEE Radar Conference …, 2017 - ieeexplore.ieee.org
Azimuth multichannel SAR system is a promising solution to achieve high-resolution and
wide-swath (HRWS) imaging for spaceborne synthetic aperture radar (SAR) system. These …

An adaptively weighted least square estimation method of channel mismatches in phase for multichannel SAR systems in azimuth

Y Liu, Z Li, T Yang, Z Bao - IEEE Geoscience and Remote …, 2013 - ieeexplore.ieee.org
Multichannel synthetic aperture radar (SAR) systems in azimuth can achieve high-resolution
and wide-swath imaging. However, the quality of final SAR image can be degraded by the …

A novel approach to Doppler centroid and channel errors estimation in azimuth multi-channel SAR

Y Zhou, R Wang, Y Deng, W Yu, H Fan… - … on Geoscience and …, 2019 - ieeexplore.ieee.org
Multi-channel synthetic aperture radar (SAR) in azimuth can overcome the minimum-
antenna-area constraint of the conventional SAR in high-resolution and wide-swath (HRWS) …