Nonambiguous SAR image formation of maritime targets using weighted sparse approach
For a single-channel synthetic aperture radar (SAR), finite-pulse repetition frequency and
nonideal antenna pattern cause azimuth ambiguities, ie, ghosts in image domain. In this …
nonideal antenna pattern cause azimuth ambiguities, ie, ghosts in image domain. In this …
[PDF][PDF] A novel sparse SAR unambiguous imaging method based on mixed-norm optimization
In this section, in order to validate the proposed method, we set four point targets from
bottom to top and left to right, named T1, T2, T3, T4, with amplitude values of 0.6, 1.0, 0.8 …
bottom to top and left to right, named T1, T2, T3, T4, with amplitude values of 0.6, 1.0, 0.8 …
Hybrid SAR/ISAR imaging of ship targets based on parameter estimation
Y Jiang, H Wang - Remote Sensing Letters, 2017 - Taylor & Francis
ABSTRACT Typical Synthetic Aperture Radar (SAR) imaging deals with static targets. This
means that moving targets appear blurred in SAR images. Difficulties in imaging are …
means that moving targets appear blurred in SAR images. Difficulties in imaging are …
Maritime surveillance with undersampled SAR
Y Wang, Z Zhang, N Li, F Hong, H Fan… - IEEE Geoscience and …, 2017 - ieeexplore.ieee.org
According to the minimum antenna area constraint, synthetic aperture radar (SAR) systems
require a low-pulse repetition frequency (PRF) to image the wide swaths in ocean surface …
require a low-pulse repetition frequency (PRF) to image the wide swaths in ocean surface …
Spaceborne multichannel SAR imaging algorithm for maritime moving targets
Z Ding, P Zheng, T Zhang, H Li, Z Li… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Spaceborne multichannel synthetic aperture radar (SAR) is an effective means to realize
high-resolution and wide-swath imaging. However, for spaceborne multichannel SAR …
high-resolution and wide-swath imaging. However, for spaceborne multichannel SAR …
Sparse representation-based synthetic aperture radar imaging
There is increasing interest in using synthetic aperture radar (SAR) images in automated
target recognition and decision-making tasks. The success of such tasks depends on how …
target recognition and decision-making tasks. The success of such tasks depends on how …
An unambiguous imaging method of moving target for maritime scenes with spaceborne high-resolution and wide-swath SAR
Y Long, F Zhao, M Zheng, L Zhao… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In azimuth multichannel high-resolution and wide-swath (AMC-HRWS) synthetic aperture
radar (SAR) system, undersampling of azimuth signal results in the failure of the single …
radar (SAR) system, undersampling of azimuth signal results in the failure of the single …
Complex-image-based sparse SAR imaging and its equivalence
Using sparse signal processing to replace matched filtering (MF) in synthetic aperture radar
(SAR) imaging has shown significant potential to improve image quality. Due to the huge …
(SAR) imaging has shown significant potential to improve image quality. Due to the huge …
Sparse representation-based algorithm for joint SAR image formation and autofocus
Inaccuracies in the observation model of the synthetic aperture radar (SAR) due to
inaccuracies of the velocity and position of the platform or atmospheric turbulence cause …
inaccuracies of the velocity and position of the platform or atmospheric turbulence cause …
Integrated detection and Imaging algorithm for radar sparse targets via CFAR-ADMM
Most research on sparsity-driven synthetic aperture radar (SAR) imaging has been carried
out in-norm regularization and considers that the SAR image contains only targets and …
out in-norm regularization and considers that the SAR image contains only targets and …