Results 11 to 20 of about 104,786 (306)

Nonlocal CNN SAR Image Despeckling [PDF]

open access: yesRemote Sensing, 2020
We propose a new method for SAR image despeckling, which performs nonlocal filtering with a deep learning engine. Nonlocal filtering has proven very effective for SAR despeckling. The key idea is to exploit image self-similarities to estimate the hidden signal.
Davide Cozzolino   +3 more
openaire   +4 more sources

Frequency-Scaling-Based Spaceborne Squint SAR Sparse Imaging

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
In synthetic aperture radar (SAR), due to the characteristics of squint data in spaceborne imaging geometry, a more accurate range cell migration correction operation is necessary.
Yufan Song   +4 more
doaj   +1 more source

RCS measurement and SAR imaging verification based on blast furnace stock line

open access: yes工程科学学报, 2018
Based on the requirements of blast furnace burden surface monitoring imaging, this study investigated the measurement of the radar cross section (RCS) of the blast furnace radar target.
WANG Chen-lu   +3 more
doaj   +1 more source

SAR moving target imaging using group sparsity [PDF]

open access: yes, 2013
SAR imaging of scenes containing moving targets results in defocusing in the reconstructed images if the SAR observation model used in imaging does not take the motion into account.
Çetin, Müjdat, Önhon, Özben Naime
core   +1 more source

Synthetic Aperture Radar Three-dimensional Imaging——From TomoSAR and Array InSAR to Microwave Vision

open access: yesLeida xuebao, 2019
Synthetic Aperture Radar three-Dimensional (SAR 3D) imaging technology can eliminate severe overlap in 2D images, and improve target recognition and 3D modeling capabilities, which have become an important trend in SAR development.
DING Chibiao   +5 more
doaj   +1 more source

Synthetic Aperture Radar Learning-imaging Method Based on Data-driven Technique and Artificial Intelligence

open access: yesLeida xuebao, 2020
One of the most important research fields in Synthetic Aperture Radar (SAR) technology is to improve the accuracies of the number, location, classification, and other parameters of targets of interest.
LUO Ying, NI Jiacheng, ZHANG Qun
doaj   +1 more source

Present Situation and Prospect of Missile-borne Radar Imaging Technology

open access: yesLeida xuebao, 2022
The missile-borne SAR may create high-resolution two-dimensional images of the observation area to gather detailed geomorphological information and information on the size and shape of the target, thereby helping to choose the attack place and enhancing ...
Yachao LI   +3 more
doaj   +1 more source

Joint sparsity-driven inversion and model error correction for radar imaging [PDF]

open access: yes, 2009
Solution of inverse problems in imaging requires the use of a mathematical model of the observation process. However such models often involve errors and uncertainties themselves. The application of interest in this paper is synthetic aperture radar (SAR)
Cetin, Mujdat   +3 more
core   +2 more sources

Sparsity-driven image formation and space-variant focusing for SAR [PDF]

open access: yes, 2011
In synthetic aperture radar (SAR) imaging, the presence of moving targets in the scene causes phase errors in the SAR data and subsequently defocusing in the formed image. The defocusing caused by the moving targets exhibits space-variant characteristics,
Çetin, Müjdat, Önhon, Özben Naime
core   +1 more source

Forward-Looking MIMO-SAR for Enhanced Radar Imaging in Autonomous Mobile Robots

open access: yesIEEE Access, 2023
Synthetic aperture radar (SAR) techniques are commonly used in spaceborne and airborne side-looking radar imaging applications, where the relatively high platform speeds enable the formation of very long synthetic apertures, which provide images with ...
Adnan Albaba   +4 more
doaj   +1 more source

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