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An Azimuth Ambiguity Suppression Method for SAR Based on Time-Frequency Joint Analysis
Remote SensingAzimuth ambiguity caused by spectral aliasing severely degrades the quality of Synthetic Aperture Radar (SAR) images. To suppress azimuth ambiguity while preserving image details as much as possible, this paper proposes an azimuth ambiguity suppression ...
Ze Yu, Xianxun Yao, Jindong Yu
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Motion Phase Compensation Methods for Azimuth Ambiguity Suppression in HRWS SAR
Remote Sensing, 2021 The azimuth multi-channel synthetic aperture radar (SAR) is widely used in marine observation, because of its excellent imaging ability of high-resolution and wide-swath (HRWS) signals.
Chibiao Ding +2 more
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A Novel Multi-Beam SAR Two-Dimensional Ambiguity Suppression Method Based on Azimuth Phase Coding
Remote SensingIn order to address the problems of range ambiguity and azimuth ambiguity in the wide-swath imaging of synthetic aperture radar (SAR), this paper proposes a multi-beam SAR two-dimensional ambiguity suppression method based on azimuth phase coding (APC ...
Yangliang Wan +2 more
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Analysis of the Azimuth Ambiguity and Imaging Area Restriction for Circular SAR Based on the Back-Projection Algorithm [PDF]
Sensors, 2019 Circular synthetic aperture radar (CSAR) has a 360° observation capability on the central observation scenario. A typical way to process CSAR imaging is to cut data into small sub-apertures because most targets are only coherent at a very small ...
Songlin Lei, Bin Lei, Bang Du
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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 ...
Robert Wang, Pingping Lu, Yonghua Cai
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Remote Sensing, 2019 In synthetic aperture radar (SAR) images, azimuth ambiguity is one of the important factors that affect image quality. Generally, the azimuth ambiguity-to-signal ratio (AASR) is a measure of the azimuth ambiguity of SAR images.
Hui Meng, Jinsong Chong
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 In this article, an azimuth ambiguity suppression method based on ambiguity area imaging and detection is proposed, which is suitable for various imaging modes such as strip, spot, and multichannel modes.
Xiaolan Qiu, Xuejiao Wen
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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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A Method for Discrimination of Ship Target and Azimuth Ambiguity in Multi-polarimetric SAR Imagery
Leida xuebao, 2015 Aiming to remove the false alarm caused by azimuth ambiguity in SAR imagery during the process of ship target detection, a method based on the improved H/α/Wishart unsupervised classification is proposed. First, the scattering echo peak zone of target is
Zhou Wei +3 more
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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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