Results 31 to 40 of about 207,009 (229)
Unambiguous Reconstruction for Multichannel Nonuniform Sampling SAR Signal Based on Image Fusion
IEEE Access, 2020 Multichannel signal processing in azimuth is a vital technique to enable a wide-swath Synthetic Aperture Radar (SAR) with high azimuth resolution. However, the multichannel high-resolution and wide-swath (HRWS) SAR system always suffers from the problem ...
Liming Zhou +6 more
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A Novel Time-Domain Frequency Diverse Array HRWS Imaging Scheme for Spotlight SAR
Remote Sensing, 2022 The frequency diverse array (FDA) technique is a novel scheme for high resolution wide swath synthetic aperture radar (SAR) imaging, which employs a frequency increment across the array elements.
Yuhao Wen +5 more
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Azimuth ambiguity suppression in SAR images using Doppler-sensitive signals [PDF]
, 2015 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 ...
Leśnik, Cz., Serafin, P., Kawalec, A.
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 In this article, an effective clutter suppression and moving target imaging approach is proposed for the geosynchronous-low earth orbit (GEO-LEO) bistatic multichannel synthetic aperture radar (SAR) system, which is robust for the fast moving target with
Shuangxi Zhang +5 more
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Cross-Pol Pattern Effects of Parabolic Reflector Antennas on the Performance of Spaceborne Quad-Pol SAR Systems [PDF]
Journal of Electromagnetic Engineering and Science, 2021 The ambiguity performance related to the image quality of a synthetic aperture radar (SAR) system can be categorized into range ambiguity, azimuth ambiguity, and cross ambiguity depending on the cause of the ambiguity signals.
Jung-Hwan Lim +2 more
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Joint Two-Dimensional Ambiguity Resolving Based on Space-Time Filtering for MIMO-SAR
International Journal of Antennas and Propagation, 2014 In order to resolve the range and azimuth ambiguity in MIMO-SAR imaging, this paper proposed a joint two-dimensional ambiguity resolving method based on space-time filtering, which according to the ambiguity in different subscene is relative to different
Ping-ping Huang +3 more
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Azimuth-Resolved Circular Dichroism of Metamaterials
, 2022 Chiral optical metamaterials have attracted a great deal of attention due to their intriguing properties with respect to fundamental research and practical applications.
Shuliang Ren +19 more
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Multi-Channel SAR Imaging on Cruising Ships with Sub-Orbital Spaceplane
Remote Sensing, 2022 A multi-channel synthetic aperture radar (SAR) on board a spaceplane orbiting near the top of the atmosphere is proposed to acquire images of cruising ships.
Li-Yang Su, Jean-Fu Kiang
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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 ...
Yanwen Han +5 more
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Phase Imbalance Estimation for Azimuth Multi-Channel ScanSAR System
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 The new concept of combining the azimuth multichannel synthetic aperture radar (SAR) system with the Scan mode was put forward to meet the requirements of future developments in high-resolution and ultrawide-swath SAR design. However, the phase imbalance
Junying Yang +4 more
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