Results 11 to 20 of about 2,282,425 (108)

Circular synthetic aperture radar sub‐aperture angle information complementation based on azimuth‐controllable generative adversarial network

open access: yesIET Radar, Sonar & Navigation
A conditional generative adversarial network (CGAN) framework is proposed to address the issue of incomplete circular synthetic aperture radar (CSAR) azimuthal information due to motion errors.
Bingxuan Li   +4 more
doaj   +3 more sources

Circular SAR imaging algorithm based on polar format algorithm for moving target

open access: yesThe Journal of Engineering, 2019
For stationary targets, circular synthetic aperture radar (CSAR) imaging has tended to be mature and perfect. However, for moving targets, due to the long synthetic aperture and the variation of slant plane with the observation angle, the motion ...
Zhou Wang   +3 more
doaj   +2 more sources

Resolution Equation for SAR Systems Synthesizing Circular Aperture

open access: yesIEEE Access
The resolution of a synthetic aperture radar (SAR) system depends not only on the operating frequency range of a radar but also on the geometry. A radar system operating at MHz frequencies facilitates SAR resolution to the meter (m) level with a linear ...
Viet T. Vu   +3 more
doaj   +2 more sources

Elevation Information Extraction Scheme Based on Sub‐Aperture Correlation Using Airborne Circular Synthetic Aperture Radar Imaging

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
The traditional elevation information extraction methods have issues such as limited precision of the elevation extraction and complex processing flow. Thus, an elevation information extraction scheme based on the sub‐aperture correlation using airborne CSAR imaging is proposed.
Hongtu Xie   +3 more
wiley   +2 more sources

Three-dimensional Reconstruction Method Study Based on Interferometric Circular SAR

open access: yesLeida xuebao, 2016
Circular Synthetic Aperture Radar (CSAR) can acquire targets’ scattering information in all directions by a 360° observation, but a single-track CSAR cannot efficiently obtain height scattering information for a strong directive scatter.
Hou Liying, Lin Yun, Hong Wen
doaj   +2 more sources

Circular SAR Optimization Imaging Method of Buildings

open access: yesLeida xuebao, 2015
The Circular Synthetic Aperture Radar (CSAR) can obtain the entire scattering properties of targets because of its great ability of 360° observation. In this study, an optimal orientation of the CSAR imaging algorithm of buildings is proposed by applying
Wang Jian-feng   +4 more
doaj   +2 more sources

Parameter inversion algorithm of CSAR moving target based on PFA sub-aperture images

open access: yesThe Journal of Engineering, 2019
Circular SAR (CSAR) as a new kind of SAR imaging mode has the advantage of long-time observation. For the moving target, the corresponding parameters of the moving target can be calculated by using the position information from the apparent coordinates ...
Di Yao, Zhou Wang, Wengu Yang, Feng Li
doaj   +2 more sources

Wavefront Reconstruction of Elevation Circular Synthetic Aperture Radar Imagery Using a Cylindrical Green's Function

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
Elevation Circular Synthetic Aperture Radar (E-CSAR) is a novel radar modality used to form radar images from data sets acquired along a complete or even a segment of a cylindrical geometry above a given scan area.
Thomas Gabriel   +2 more
doaj   +1 more source

Position and Orientation System Error Analysis and Motion Compensation Method Based on Acceleration Information for Circular Synthetic Aperture Radar

open access: yesRemote Sensing
Circular synthetic aperture radar (CSAR) possesses the capability of multi-angle observation, breaking through the geometric observation constraints of traditional strip SAR and holding the potential for three-dimensional imaging.
Zhenhua Li   +7 more
doaj   +2 more sources

A 3‐D Shape Reconstruction Strategy for Small Solar System Bodies With Single Flyby Spaceborne Radar

open access: yesEarth and Space Science, Volume 10, Issue 4, April 2023., 2023
Abstract This article presents a novel 3‐D shape reconstruction strategy for small solar system bodies using spaceborne radar which is applied in flyby trajectories to characterize multiple targets in one mission to save time and cost. In this study, we establish a measurement geometry for rapidly spinning small solar system bodies that combines the ...
Chaoran Hu   +4 more
wiley   +1 more source

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