Channel Phase Calibration for High-Resolution and Wide-Swath SAR Imaging with Doppler Spectrum Sharpness Optimization [PDF]
Sensors, 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.
Man Zhang +3 more
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Range-Dependent Channel Calibration for High-Resolution Wide-Swath Synthetic Aperture Radar Imagery [PDF]
SensorsHigh-resolution and wide-swath (HRWS) synthetic aperture radar (SAR) imaging with azimuth multi-channel always suffers from channel phase and amplitude errors.
Man Zhang +3 more
doaj +4 more sources
System Design and Echo Preprocessing of Spaceborne Squinted Two-Dimensional Beam Scanning Synthetic Aperture Radar [PDF]
Sensors, 2023 Conventional squinted sliding spotlight synthetic aperture radar (SAR) imaging suffers from substantial swath width reduction and complex processing requirements due to the continuous variation in the squint angle and the large range cell migration (RCM)
Wei Xu +5 more
doaj +2 more sources
The Latest Developments in Spaceborne High-Resolution Wide-Swath SAR Systems and Imaging Methods [PDF]
SensorsAzimuth resolution and swath width are two crucial parameters in spaceborne synthetic aperture radar (SAR) systems. However, it is difficult for conventional spaceborne SAR to simultaneously achieve high-resolution wide-swath (HRWS) due to the minimum ...
Ruizhen Song, Wei Wang, Weidong Yu
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Remote Sensing, 2021 Scan-on-receive (SCORE) digital beamforming (DBF) in elevation can significantly improve the signal-to-noise ratio (SNR) and suppress range ambiguities in spaceborne synthetic aperture radar (SAR).
Wei Xu +5 more
doaj +3 more sources
Unambiguous Imaging of Static Scenes and Moving Targets with the First Chinese Dual-Channel Spaceborne SAR Sensor [PDF]
Sensors, 2017 Multichannel synthetic aperture radar (SAR) is a breakthrough given the inherent limitation between high-resolution and wide-swath (HRWS) faced with conventional SAR.
Tingting Jin +3 more
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ASTC-MIMO-TOPS Mode with Digital Beam-Forming in Elevation for High-Resolution Wide-Swath Imaging
Remote Sensing, 2015 Future spaceborne synthetic aperture radar (SAR) missions require complete and frequent coverage of the earth with a high resolution. Terrain Observation by Progressive Scans (TOPS) is a novel wide swath mode but has impaired azimuth resolution.
Pingping Huang, Wei Xu
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Robust Clutter Suppression and Radial Velocity Estimation for High-Resolution Wide-Swath SAR-GMTI
Remote Sensing, 2022 Moving targets are usually smeared and imaged at incorrect positions in synthetic aperture radar (SAR) images due to the target motions during the illumination time. Moreover, a moving target will cause multiple artifacts in the reconstructed image since
Zhenning Zhang +4 more
doaj +3 more sources
Remote Sensing, 2022 High-Resolution Wide-Swath (HRWS) is an important development direction of space-borne Synthetic Aperture Radar (SAR). The two-dimensional spatial variation of the Doppler parameters is the most significant characteristic of the sliding spotlight space ...
Yanan Guo +5 more
doaj +3 more sources
Remote Sensing, 2017 Multichannel synthetic aperture radar (SAR) is a significant breakthrough to the inherent limitation between high-resolution and wide-swath (HRWS) compared with conventional SAR.
Tingting Jin +3 more
doaj +3 more sources