Results 1 to 10 of about 768,249 (233)
Tomographic 3D Reconstruction From Airborne Circular SAR [PDF]
2009 IEEE International Geoscience and Remote Sensing Symposium, 2009 The study of data acquired over a circular trajectory has raised an increasing interest in the SAR community. Two main reasons summarize the interest in such geometry. First, sub-wavelength resolution can be achieved, as the targets in the spotted area are observed under a 360o aperture.
Rolf Scheiber, P Prats
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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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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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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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Modulus Stretch-Based Circular SAR Imaging with Contour Thinning
Applied Sciences, 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 ...
Rongchun Hu, Zhenming Peng, Kelong Zheng
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SAR Resolution Enhancement With Circular Aperture in Theory and Empirical Scenario [PDF]
2014 IEEE Radar Conference, 2014 SAR systems synthesizing circular apertures have been shown to result in better spatial resolutions than the ones synthesizing linear apertures. The paper presents an investigation about the enhancement of SAR spatial resolutions with the use of circular aperture.
Mats I Pettersson +2 more
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Multi-Circular SAR Three-Dimensional Image Formation via Group Sparsity in Adjacent Sub-Apertures
Remote 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.
Weixing Yang, Daiyin Zhu
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Circular SAR Incoherent 3D Imaging with a NeRF-Inspired Method
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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Circular SAR Optimization Imaging Method of Buildings
Leida 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
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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
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