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 …

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 …

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 …

Modification of multichannel reconstruction algorithm on the SAR with linear variation of PRI

X Luo, R Wang, W Xu, Y Deng… - IEEE Journal of Selected …, 2014 - ieeexplore.ieee.org
This paper focuses on the signal processing for synthetic aperture radar (SAR) with fast
linear variation of PRI which was introduced to settle the blind range problem in …

Out-of-band ambiguity analysis of nonuniformly sampled SAR signals

Z Zhu, Z Zhang, R Wang, L Guo - IEEE Geoscience and Remote …, 2014 - ieeexplore.ieee.org
High-resolution and wide-swath synthetic aperture radar (SAR) images can be obtained by
multichannel sampling. However, a nonoptimum pulse-repetition frequency is associated …

SAR signal recovery and reconstruction in staggered mode with low oversampling factors

X Wang, R Wang, Y Deng, W Wang… - IEEE Geoscience and …, 2018 - ieeexplore.ieee.org
The next generation of spaceborne synthetic aperture radar (SAR) remote sensing systems
will emphasize on high-resolution and wide-coverage imaging. For these design goals …

Unambiguous reconstruction and imaging of nonuniform sampling SAR signals

L Guangyan, L Youquan - 2007 1st Asian and Pacific …, 2007 - ieeexplore.ieee.org
Nonuniform sample of SAR signal will bring the noise into the signals, and thus mix the
spectrum of the echo signals with that of the noises, increase ambiguity of the signals, and …

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 …

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 …

One-bit SAR imaging based on single-frequency thresholds

B Zhao, L Huang, W Bao - IEEE Transactions on Geoscience …, 2019 - ieeexplore.ieee.org
This paper addresses a novel SAR imaging scheme based on 1-bit sampling assisted with a
single-frequency threshold. The 1-bit sampling approach is able to considerably reduce the …