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 …

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 …

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 …

Modifications on multichannel reconstruction algorithm for SAR processing based on periodic nonuniform sampling theory and nonuniform fast Fourier transform

S Zhao, R Wang, Y Deng, Z Zhang, N Li… - IEEE Journal of …, 2015 - ieeexplore.ieee.org
The next generation of space-borne synthetic aperture radar (SAR) systems will emphasize
on high-resolution and wide-swath imaging. For these design goals, multichannel …

Signal reconstruction algorithm for azimuth multichannel SAR system based on a multiobjective optimization model

Y Zhang, W Wang, Y Deng… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This article establishes a multiobjective optimization model to suppress the azimuth
ambiguity power and noise simultaneously in signal reconstruction for a multichannel …

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 …

Azimuth ambiguity suppression with an improved reconstruction method based on antenna pattern for multichannel synthetic aperture radar systems

W Wang, R Wang, Y Deng, W Xu… - IET Radar, Sonar & …, 2015 - Wiley Online Library
For synthetic aperture radar (SAR) systems, antenna array which is distributed in flight
direction could increase the equivalent sample frequency in azimuth by a factor of the …

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 …

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) …

A channel calibration algorithm based on isolated scatterers for multi-channel HRWS-SAR

D Wu, Y Zhang, D Zhu, S Wang, M Shen - IEEE Access, 2019 - ieeexplore.ieee.org
Multi-channel receiving technique has been proved to be a promising approach for synthetic
aperture radar (SAR) to achieve simultaneous high-resolution and wide-swath (HRWS) …