Results 21 to 30 of about 3,167 (215)
New Technique for Static Target Detection in Dense-Multipath Urban Environments [PDF]
, 2011 Synthetic Aperture Radar (SAR) images a target region reflectivity function in the multi-dimensional spatial domain of range and cross-range with a finer azimuth resolution than the one provided by any on-board real antenna.
Arriba Ruiz, Imanol de +8 more
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Distributed MIMO-ISAR Sub-image Fusion Method
Leida xuebao, 2017 The fast fluctuation associated with maneuvering a target’s radar cross-section often affects the imaging performance stability of traditional monostatic Inverse Synthetic Aperture Radar (ISAR).
Gu Wenkun, Wang Dangwei, Ma Xiaoyan
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Inverse Synthetic Aperture Radar Imaging Using an Attention Generative Adversarial Network
Remote Sensing, 2022 The traditional inverse synthetic aperture radar (ISAR) imaging uses matched filtering and pulse accumulation methods. When improving the resolution and real-time performance, there are some problems, such as the high sampling rate and large amount of ...
Yanxin Yuan +3 more
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Multipath Smearing Suppression for Synthetic Aperture Radar Images of Harbor Scenes
IEEE Access, 2019 Due to the periodic and non-periodic variations in the sea surface, smearing is caused by the multiple paths between the sea surface and man-made objects in synthetic aperture radar images of harbor areas. This smearing can cover real targets and lead to
Peng Xiao, Xiaolu Tian, Min Liu, Wei Liu
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Inversion Of Synthetic Aperture Radar Data For Surface Scattering [PDF]
10th Annual International Symposium on Geoscience and Remote Sensing, 1992 SUMMARY The conventional image-formation technique of high-resolution SAR synthetic aperture radar (SAR) data has utilized correlation in the range-Doppler domain. An alternative, more recent approach, in the SAR image-formation algorithm exploits downward extrapolation of the wavefield in the f-k domain to perform not only azimuth compression but ...
J. S. Won, W. M. Moon
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Parametric Sparse Representation and Its Applications to Radar Sensing
Leida xuebao, 2016 Sparse signal processing has been utilized to the area of radar sensing. Due to the presence of unknown factors such as the motion of the targets of interest and the error of the radar trajectory, a predesigned dictionary cannot provide the optimally ...
Li Gang, Xia Xiang-Gen
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Leida xuebao, 2021 In the Inverse Synthetic Aperture Radar (ISAR) imaging system, when the terahertz radar transmits the wide bandwidth signal and vortex electromagnetic wave, Three-Dimensional (3D) high-resolution imaging can be achieved through information decoupling ...
Yanwen JIANG, Hongqi FAN, Shuangxun LI
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Inverse Synthetic Aperture Radar Imaging: A Historical Perspective and State-of-the-Art Survey
IEEE Access, 2021 Radar can obtain high spatial resolution at large operating distances, and its operation is largely independent from weather and lighting conditions. This makes it an important instrument in an ever-increasing number of applications requiring robust and ...
Risto Vehmas, Nadav Neuberger
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Analytic inversion in synthetic aperture radar. [PDF]
Proceedings of the National Academy of Sciences, 1994 A method of processing synthetic aperture radar signals that avoids some of the approximations currently in use that appear to be responsible for severe phase distortions is described. As a practical matter, this method requires N3 numerical operations, as opposed to the N2 ln N currently the case, but N3 is now easily managed, for N in the range of ...
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Classification of Automotive Targets Using Inverse Synthetic Aperture Radar Images [PDF]
IEEE Transactions on Intelligent Vehicles, 2022 We present a framework for simulating realistic inverse synthetic aperture radar images of automotive targets at millimeter wave frequencies. The model incorporates radar scattering phenomenology of commonly found vehicles along with range-Doppler based clutter and receiver noise. These images provide insights into the physical dimensions of the target,
Neeraj Pandey, Shobha Sundar Ram
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