Results 1 to 10 of about 730,674 (291)

Multi-Circular SAR Three-Dimensional Image Formation via Group Sparsity in Adjacent Sub-Apertures

open access: yesRemote Sensing, 2022
Multi-circular SAR(MCSAR) can obtain holographic three-dimensional (3D) images of interesting observation targets, which is a significant research field at present.
Daiyin Zhu, Weixing Yang
exaly   +3 more sources

A Sidelobe Suppression Method for Circular Ground-Based SAR 3D Imaging Based on Sparse Optimization of Radial Phase-Center Distribution

open access: yesRemote Sensing, 2022
Circular ground-based SAR (GBSAR) is a new 3D imaging GBSAR with the potential of acquiring high-quality 3D SAR images and 3D deformation. However, its donut-shaped spectrum and short radius of antenna rotation cause high sidelobes on 3D curved surfaces,
Yun Lin, Jinping Sun, Qiming Zhang
exaly   +3 more sources

Aspect Entropy Extraction Using Circular SAR Data and Scattering Anisotropy Analysis [PDF]

open access: yesSensors, 2019
In conventional synthetic aperture radar (SAR) working modes, targets are assumed isotropic because the viewing angle is small. However, most man-made targets are anisotropic.
Fei Teng, Wen Hong, Yun Lin
doaj   +2 more sources

Modulus Stretch-Based Circular SAR Imaging with Contour Thinning

open access: yesApplied Sciences (Switzerland), 2019
This paper presents a modulus stretch-based circular Synthetic Aperture Radar (SAR) imaging method. This method improves the traditional backprojection algorithm for circular SAR imaging, and introduces the modulus stretch transformation function in the ...
Zhenming Peng
exaly   +3 more sources

Analysis of Azimuthal Variations Using Multi-Aperture Polarimetric Entropy with Circular SAR Images

open access: yesRemote Sensing, 2018
In conventional synthetic aperture radar (SAR), sensors with a fixed look angle are assumed, and the scattering properties are considered as invariant in the azimuth.
Wenjie Shen, Feiteng Xue, Yun Lin
exaly   +3 more sources

Analysis of Dual- and Full-Circular Polarimetric SAR Modes for Rice Phenology Monitoring: An Experimental Investigation through Ground-Based Measurements

open access: yesApplied Sciences (Switzerland), 2017
Circularly polarized synthetic aperture radar (CP-SAR) is known to be insensitive to polarization mismatch losses caused by the Faraday rotation effect and antenna misalignment.
Mohd Zafri Baharuddin   +2 more
exaly   +3 more sources

Sea Surface Current Estimation Using Airborne Circular Scanning SAR with a Medium Grazing Angle

open access: yesRemote Sensing, 2018
Circular scanning synthetic aperture radar (SAR) is a novel imaging mode wherein the radar antenna rotates from 0 degrees to 360 degrees along the platform flight direction, providing us with a potentially effective technique to estimate the sea surface ...
Guisheng Liao, Hongxing Dang
exaly   +3 more sources

Research on Full-aspect Three-dimensional SAR Imaging Method for Complex Structural Facilities without Prior Model

open access: yesLeida xuebao, 2022
SAR three-Dimensional (3D) imaging of complex structural facilities is an important and challenging issue in SAR imaging. The existing 3D SAR imaging relies on multiple channels or flights in the elevation direction, exerting high demands on the radar ...
Yun LIN   +6 more
doaj   +1 more source

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