Results 11 to 20 of about 721,734 (114)
Progress in Circular SAR Imaging Technique
Leida 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 +2 more sources
Study on Geosynchronous Circular SAR
Leida 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 +2 more sources
Three-dimensional Reconstruction Method Study Based on Interferometric Circular SAR
Leida 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
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Resolution Equation for SAR Systems Synthesizing Circular Aperture
IEEE AccessThe 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
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Analysis of Azimuthal Variations Using Multi-Aperture Polarimetric Entropy with Circular SAR Images
Remote 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.
Feiteng Xue +6 more
doaj +2 more sources
Annals of Clinical and Translational Neurology, Volume 10, Issue 10, Page 1725-1737, October 2023., 2023 Abstract Objective To investigate the serologic response, predictors of response, and clinical outcomes associated with severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) vaccination and infection in ozanimod‐treated participants with relapsing multiple sclerosis (RMS) from DAYBREAK.
Bruce A. C. Cree +10 more
wiley +1 more source
A 3‐D Shape Reconstruction Strategy for Small Solar System Bodies With Single Flyby Spaceborne Radar
Earth 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
A Land Bridge Extraction Method Based on Polarized Circular Synthetic Aperture Radar Images
Leida xuebao, 2021 As important man-made targets, bridges have been a major focus of Synthetic Aperture Radar (SAR) image interpretation, and many researchers have developed methods for bridge detection. The core frameworks of these methods are analogical, a river is first
Xiangcheng TAN +3 more
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Clinical Pharmacology &Therapeutics, Volume 112, Issue 3, Page 540-561, September 2022., 2022 Enabled by a plethora of new technologies, research in membrane transporters has exploded in the past decade. The goal of this state‐of‐the‐art article is to describe recent advances in research on membrane transporters that are particularly relevant to drug discovery and development.
Kathleen M. Giacomini +9 more
wiley +1 more source
The impact of COVID‐19 government responses on remittances in Latin American countries
Journal of International Development, Volume 34, Issue 4, Page 803-822, May 2022., 2022 Abstract Workers' remittances declined sharply as the COVID‐19 pandemic spread in the first half of 2020, rebounding in the second half. This paper analyses the impact of containment and economic support measures on remittances sent to Latin America during 2019–2020 using a gravity model estimated with the Poisson pseudo‐maximum likelihood estimator ...
Adriana R. Cardozo Silva +3 more
wiley +1 more source