Results 11 to 20 of about 641,941 (183)
Azimuth Ambiguity Suppression for Hybrid Polarimetric Synthetic Aperture Radar via Waveform Diversity [PDF]
Remote Sensing, 2020 Hybrid quadrature polarimetric (hybrid quad-pol) synthetic aperture radar (SAR) is proposed as a potential candidate for the full-polarimetric SAR mode. It allows balanced range ambiguity performance and simplified system structure.
Pengfei Zhao +4 more
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Azimuth Ambiguity Suppression in SAR Images Based on Compressive Sensing Recovery Algorithm
Leida xuebao, 2016 Azimuth ambiguities appear widely throughout spaceborne Synthetic Aperture Radar (SAR) images. If the ambiguous energy is relatively strong, a large number of brilliant areas or points will emerge, which may be erroneously judged as actual targets.
Xiao Peng +3 more
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Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems [PDF]
IEEE Transactions on Geoscience and Remote Sensing, 2011 The current generation of spaceborne synthetic aperture radar (SAR) systems suffers from a tradeoff between the achievable spatial resolution and swath width. This has motivated intensive research both on more flexible SAR systems, using multiple transmit/receive channels, and on techniques for removing the ambiguities.
Federica Bordoni +2 more
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Remote Sensing, 2021 Azimuth ambiguities, or ghosts on SAR images, represent one of the main obstacles for SAR applications involving coastal monitoring activities such as ship detection.
Joon Hyuk Choi, Joong-Sun Won
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First Spaceborne Demonstration of Digital Beamforming for Azimuth Ambiguity Suppression [PDF]
IEEE Transactions on Geoscience and Remote Sensing, 2013 Over the past years, the use of multiple antenna apertures combined with digital beamforming (DBF) has been spotlighted as a promising solution for the fundamental restriction for high-resolution and wide-swath spaceborne synthetic aperture radar (SAR) imaging.
Junghyo Kim +4 more
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Remote SensingSparse Synthetic Aperture Radar (SAR) imaging has garnered significant attention due to its ability to suppress azimuth ambiguity in under-sampled conditions, making it particularly useful for high-resolution wide-swath (HRWS) SAR systems.
Zhiyi Jin +3 more
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Method of Range Ambiguity Suppression Combining Sparse Reconstruction and Matched Filter
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Synthetic aperture radar (SAR) images are often affected by range ambiguity due to antenna sidelobe characteristics and pulse operating mechanism. The work of range ambiguity suppression focuses on both SAR system design and signal processing. On the one
Meng Qi +4 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingStaggered synthetic aperture radar (SAR) is compatible with quadrature-polarimetric (quad-pol) SAR, enabling ultrawide continuous swath quad-pol SAR imaging with fine azimuth resolution.
Ruizhen Song +4 more
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Azimuth ambiguity suppression in SAR images using Doppler-sensitive signals [PDF]
Bulletin of the Polish Academy of Sciences Technical Sciences, 2015 Abstract In the article the problem of the azimuth ambiguity in synthetic aperture radar (SAR) images and its genesis are presented. A method of suppressing the ambiguities by utilization of Doppler-sensitive signals is proposed, and the necessary modifications to the SAR synthesis algorithm are discussed.
Cz. Leśnik, P. Serafin, A. Kawalec
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Remote Sensing, 2023 The LuTan-1(LT-1), known as the L-band differential interferometric synthetic aperture radar (SAR) satellite system, is an essential piece of civil infrastructure in China, providing extensive applications such as surface deformation monitoring and ...
Zongxiang Xu +4 more
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