Results 1 to 10 of about 9,177 (175)
Aspect Entropy Extraction Using Circular SAR Data and Scattering Anisotropy Analysis [PDF]
Sensors, 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
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Three-dimensional Resolution Analysis for Geosynchronous Circular SAR
Leida xuebao, 2012 GEOsynchronous Circular SAR (GEOCSAR), having a high orbit, operating in a slant ellipse, and imaging in spherical surface, should be newly modeled to assess the resolution performance.
Wang Bing-nan, Xiang Mao-sheng
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A GAN-based fast focusing method for circular SAR images. [PDF]
HeliyonCircular Synthetic Aperture Radar(CSAR) imaging is vulnerable to perturbations in the atmosphere and various other elements that can lead to position offset errors in the antenna's phase center as well as induce motion errors. Traditional phase compensation methods that operate in the time domain, such as Auto-regressive Back-projection (ARBP ...
Li B, Ma Y, Chu L, Li W, Shi Y.
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Statistical Models of Speckle for Circular SAR Imaging
Leida xuebao, 2015 Circular Synthetic Aperture Radar (CSAR) is a recently developed all-directional high-resolution imaging mode, which is efficient in dealing with the target recognition, area monitoring, and three-dimensional reconstruction because of the acquisition of ...
Guo Xiao-yang +4 more
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High-Resolution Sea Surface Current Vector Field Inversion Based on Circular Scanning SAR [PDF]
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 The Doppler scatterometer is an instrument used in real aperture radar in conjunction with a circular scanning antenna and has wide swath and multiangle characteristics.
Xiaonan Yao +6 more
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Circular SAR Incoherent 3D Imaging with a NeRF-Inspired Method [PDF]
Remote Sensing, 2023 Circular synthetic aperture radar (CSAR) has the potential to form 3D images with single-pass single-channel radar data, which is very time-efficient.
Hanqing Zhang +5 more
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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
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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
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Moving Target Indication for Dual-Channel Circular SAR/GMTI Systems. [PDF]
Sensors (Basel), 2019 In a dual-channel circular synthetic aperture radar (CSAR) and ground moving target indication (GMTI) system, the antenna baseline is not parallel with the flight path due to a yaw angle. The angle causes a varying group-phase shift between the dual-channel signals and therefore degrades the correlation between the image pair.
Wang L, Li Y, Wang W, An D.
europepmc +5 more sources
Circular RNA vaccines against SARS-CoV-2 and emerging variants
Cell, 2022 As the emerging variants of SARS-CoV-2 continue to drive the worldwide pandemic, there is a constant demand for vaccines that offer more effective and broad-spectrum protection. Here, we report a circular RNA (circRNA) vaccine that elicited potent neutralizing antibodies and TÂ cell responses by expressing the trimeric RBD of the spike protein ...
Liang Qu +31 more
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