Results 41 to 50 of about 9,215,645 (352)
Study of the Extended Phase Shift Migration for Three-Dimensional MIMO-SAR Imaging in Terahertz Band
IEEE Access, 2020 In this paper, the extended phase shift migration (PSM) for three-dimensional (3-D) multi-input-multi-output synthetic aperture radar (MIMO-SAR) imaging in terahertz (THz) band was studied.
Hang Gao +6 more
semanticscholar +1 more source
SAR Imaging of Fractal Surfaces [PDF]
IEEE Transactions on Geoscience and Remote Sensing, 2012 A complete theoretical model for synthetic aperture radar (SAR) imaging of natural surfaces is introduced in this paper. The topography of the natural scenes is described via models derived from fractal geometry; scattering evaluations are performed via fractal scattering models appropriate to the employed fractal scene description.
DI MARTINO, GERARDO +2 more
openaire +2 more sources
Method of Range Ambiguity Suppression Combining Sparse Reconstruction and Matched Filtering
Leida xuebao, 2022 To a certain extent, SAR images are affected by range ambiguity due to antenna sidelobe characteristics and pulse operating system. The work of range ambiguity suppression focuses on SAR system design and signal processing.
Meng QI +5 more
doaj +1 more source
Polarimetric calibration strategy for long-duration imaging with a ground-based SAR [PDF]
, 2005 The Ground-Based Synthetic Aperture Radar (GB-SAR) facility in the UK provides high-resolution, fully polarimetrically calibrated L- through X-band SAR imagery, principally of targets of remote sensing interest such as soils and vegetation.
Morrison, Keith +9 more
core +1 more source
Leida xuebao, 2023 The ocean surface is a complicated dynamic system with considerable irregularity and nonrepetition in space and time. Sea clutter is the superposition of a large number of scatterer echoes generated by the radar electromagnetic signal irradiated to the ...
Lixin GUO, Yiwen WEI
doaj +1 more source
SAR Image Segmentation with GMMs [PDF]
International Conference on Radar Systems (Radar 2017), 2017 This paper proposes a new approach for Synthetic Aperture Radar (SAR) image segmentation. Segmenting SAR images can be challenging because of the blurry edges and the high speckle. The segmentation proposed is based on a machine learning technique.
Belloni, Carole +3 more
openaire +4 more sources
Indian Journal of Radiology and Imaging, 2018 Posterior reversible encephalopathy syndrome (PRES) is a well-documented pathology of the brain in systemic upsets. Majority of PRES cases present with edema in the cerebrum, most commonly in the territory of posterior circulation.
Pui Kwan Joyce Chan +3 more
doaj +1 more source
On-chip data organization and access strategy for spaceborne SAR real-time imaging processor
Xibei Gongye Daxue Xuebao, 2021 Spaceborne SAR(synthetic aperture radar) imaging requires real-time processing of enormous amount of input data with limited power consumption. Designing advanced heterogeneous array processors is an effective way to meet the requirements of power ...
doaj +1 more source
Progressive SAR imaging technique [PDF]
2010 IEEE International Geoscience and Remote Sensing Symposium, 2010 A progressive SAR imaging technique is proposed as a novel SAR raw data processing scheme in this paper. Different from the classic SAR imaging algorithms which focus the SAR raw data as a whole regardless of the backscattering signal, the novel scheme discriminate the backscattering signal and choose the proper ones to be focused progressively ...
Kaizhi Wang +4 more
openaire +1 more source
Spaceborne Bi- and Multistatic SAR: Potential and Challenges [PDF]
, 2006 Bi- and multistatic synthetic aperture radar (SAR) operates with distinct transmit and receive antennas that are mounted on separate platforms. Such a spatial separation has several operational advantages, which will increase the capability, reliability ...
Moreira, Alberto, Krieger, Gerhard
core +1 more source