Results 1 to 10 of about 35,288,445 (167)
A Novel MIMO–SAR Solution Based on Azimuth Phase Coding Waveforms and Digital Beamforming [PDF]
Sensors, 2018 In multiple-input multiple-output synthetic aperture radar (MIMO–SAR) signal processing, a reliable separation of multiple transmitted waveforms is one of the most important and challenging issues, for the unseparated signal will degrade the ...
Fang Zhou +4 more
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Dynamic antenna clustering along with low RF complexity digital beamforming. [PDF]
PLoS ONEThis paper presents a digital beamforming technique with low radio frequency (RF) complexity that can preserve antenna weights between the antenna aperture and the digital baseband processing unit.
Usman Haider +4 more
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Inter-Channel Error Calibration Method for Real-Time DBF-SAR System Based on FPGA [PDF]
SensorsElevation Digital Beamforming (DBF) technology is key to achieving high-resolution wide-swath (HRWS) imaging in spaceborne Synthetic Aperture Radar (SAR) systems.
Yao Meng +7 more
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Remote Sensing, 2022 To achieve high-resolution and wide-swath (HRWS) imaging, a space-time waveform-encoding (STWE) spaceborne synthetic aperture radar (SAR) system is adopted.
Sheng Chang +7 more
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Remote Sensing, 2020 With the rapid development of the multiple-input multiple-output synthetic aperture radar (MIMO SAR) system, the demands for miniaturization and high gain of antenna are increasing.
Shenjing Wang +5 more
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IET Radar, Sonar & NavigationA broadband microwave photonic time division multiplexing (TDM) multiple‐input‐multiple‐output (MIMO) radar is proposed in which photonic frequency quadrupling is adopted to generate broadband radar signals and photonic frequency mixing is implemented ...
Yuewen Zhou +3 more
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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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Fast Adaptive Beamforming for Weather Observations with Convolutional Neural Networks
Remote Sensing, 2023 Polarimetric phased array radar (PAR) can achieve high temporal resolutions for improved meteorological observations with digital beamforming (DBF). The Fourier method performs DBF deterministically, and produces antenna radiation patterns with fixed ...
Yoon-SL Kim +3 more
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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
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Integrating Agile Waveforms With DBF for HRWS SAR Imagery and Adaptive Jamming Suppression
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 Range ambiguity resolving and deceptive jamming suppression are both challenges for high-resolution wide-swath SAR imagery. With the accommodation of the digital beamforming (DBF) techniques, agile waveforms are of potential to tackle the ambiguity ...
GanE Dai, Sha Huan, Lei Zhang
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