Results 31 to 40 of about 199,781 (299)
Three-dimensional interferometric inverse synthetic aperture radar imaging with limited pulses by exploiting joint sparsity [PDF]
, 2015 For manoeuvring targets, long coherent processing interval observation results in a serious time-varying Doppler modulation that is difficult to achieve high quality three-dimensional (3D) interferometric inverse synthetic aperture radar (InISAR) images.
Qianqian Chen +4 more
semanticscholar +2 more sources
Inverse Synthetic Aperture Radar Sparse Imaging Recovery Technique Based on Improved Alternating Direction Method of Multipliers. [PDF]
Sensors (Basel)Hao H, Zhu W, Yu R, Liu D.
europepmc +2 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingDue to the nonstationarity of the echo, it is hard to form a well-focused sparse aperture inverse synthetic aperture radar (SA-ISAR) image for maneuvering targets by traditional algorithms.
Jiaxing Yang, Yong Wang
doaj +2 more sources
EURASIP Journal on Advances in Signal Processing, 2021 Range alignment is an essential procedure in the translation motion compensation of inverse synthetic aperture radar imaging. Global optimization or maximum-correlation-based algorithms have been used to realize range alignment.
Yue Lu, Jian Yang, Yue Zhang, Shiyou Xu
doaj +1 more source
Moving Target Refocusing With the FMCW SAR System MIRANDA-35
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Inverse synthetic aperture radar is a commonly adopted technique for producing high-resolution images of moving targets. This article investigates the imaging capabilities of high-frequency and high-bandwidth systems by means of two distinct experiments.
Emiliano Casalini +2 more
doaj +1 more source
A sparsity-driven approach for joint SAR imaging and phase error correction [PDF]
, 2010 Image formation algorithms in a variety of applications have explicit or implicit dependence on a mathematical model of the observation process. Inaccuracies in the observation model may cause various degradations and artifacts in the reconstructed ...
Cetin, Mujdat +3 more
core +5 more sources
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
doaj +1 more source
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 ...
Joong-Sun Won, Wooil M. Moon
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Multi-static synthetic aperture radar and inverse scattering [PDF]
, 2004 In this paper synthetic aperture radar is analyzed from an inverse scattering perspective. It is shown that the classical point scattering model can be generalized to a dipole scattering model. The dipole scattering model reduces to the point scattering model for small aperture angles.
Gustafsson, Mats
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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 ...
openaire +3 more sources