Results 51 to 60 of about 2,185,953 (100)

A Focusing Algorithm for Circular SAR Based on Phase Error Estimation in Image Domain

open access: yesLeida xuebao, 2015
Residual motion error is common in high-resolution circular Synthetic Aperture Radar (SAR) image defocusing. The Signal-to-Clutter Ratio (SCR) in echo data domain is relatively low; thus, the phase error spans several range bins.
Guo Zhen-yu, Lin Yun, Hong Wen
doaj   +1 more source

Optical 3D assisted CSAR for security screening at a constant passenger flow

open access: yes, 2022
S.193-194In times of increasing terror, elementary infrastructures like airports have to be protected. But, there are also some unsolved problems dealing with this topic, especially about security screening systems.
Hantscher, S.   +4 more
core  

Progress in Circular SAR Imaging Technique

open access: yesLeida xuebao, 2012
Circular SAR (CSAR) is a newly developed all-directional high resolution 3D imaging mode in recent years, to satisfy the demand of finer observation. The National Key Laboratory of Science and Technology on Microwave Imaging, Institute of Electronics ...
Hong Wen
doaj   +1 more source

Calibration Issue in SMART Synthetic Aperture Radar Based on Scan-On-Receive [PDF]

open access: yes, 2009
A new spaceborne Synthetic Aperture Radar (SAR) system based on SCan-On-REceive (SCORE) algorithm has been recently proposed in order to overcome the trade-off between spatial resolution and swath wide of current SAR systems. The compound architecture of
Bordoni, Federica   +2 more
core  

Study on Geosynchronous Circular SAR

open access: yesLeida xuebao, 2015
The concept of Geosynchronous Circular SAR (Geo-CSAR) is introduced in this paper. With the design of the geosynchronous orbit parameters, a near-circular satellite sub-track could be formed to enable the staring imaging mode, which supports the advanced
Hong Wen   +4 more
doaj   +1 more source

Advanced Bistatic and Multistatic SAR Concepts and Applications [PDF]

open access: yes, 2006
Tutorial on Bistatic and Multistatic Synthetic Aperture Radar from EUSAR 2006 ...
Krieger, Gerhard
core  

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   +1 more source

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   +1 more source

A Novel Method for CSAR Multi-Focus Image Fusion

open access: yesRemote Sensing
Circular synthetic aperture radar (CSAR) has attracted a lot of interest, recently, for its excellent performance in civilian and military applications. However, in CSAR imaging, the result is to be defocused when the height of an object deviates from a ...
Jinxing Li   +4 more
doaj   +1 more source

Synthetic aperture radar for all weather penetrating UAV application (SARape) - project presentation

open access: yes, 2022
S.290-293The capability to image scenes from unmanned aerial vehicles (UAVs) even through bad weather conditions or dust clouds is an important requirement for state-of-the-art synthetic aperture radar (SAR).
Leuther, Arnulf   +14 more
core   +1 more source

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