Results 1 to 10 of about 326 (121)
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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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
exaly +3 more sources
Azimuth Phase Coding by Up and Down Chirp Modulation for Range Ambiguity Suppression
IEEE Access, 2019 High range ambiguity level will impair the spaceborne SAR image quality and hamper following SAR image applications. The range ambiguity suppression effect of the up and down chirp modulation on spaceborne SAR images is analyzed in this paper.
Weixian Tan, Wei Xu, Pingping Huang
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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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Channel Phase Calibration for High-Resolution and Wide-Swath SAR Imaging with Doppler Spectrum Sharpness Optimization. [PDF]
Sensors (Basel), 2022 Channel phase calibration is a crucial issue in high resolution and wide swath (HRWS) imagery with azimuth multi-channel synthetic aperture radar (SAR) systems.
Zhang M, Huan S, Zhao Z, Wang Z.
europepmc +2 more sources
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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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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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.
Xiaolan Qiu, Zhiyi Jin, Zhe Zhang
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Range-Dependent Channel Calibration for High-Resolution Wide-Swath Synthetic Aperture Radar Imagery. [PDF]
Sensors (Basel)High-resolution and wide-swath (HRWS) synthetic aperture radar (SAR) imaging with azimuth multi-channel always suffers from channel phase and amplitude errors.
Zhang M, Meng Z, Wang G, Xue Y.
europepmc +2 more sources
Defence TechnologyRange-azimuth imaging of ground targets via frequency-modulated continuous wave (FMCW) radar is crucial for effective target detection. However, when the pitch of the moving array constructed during motion exceeds the physical array aperture, azimuth ...
Jian Dai, Yanwen Han
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