Results 21 to 30 of about 16,091 (269)
The Mathematical Foundations of 3D Compton Scatter Emission Imaging
International Journal of Biomedical Imaging, 2007 The mathematical principles of tomographic imaging using detected (unscattered) X- or gamma-rays are based on the two-dimensional Radon transform and many of its variants.
T. T. Truong, M. K. Nguyen, H. Zaidi
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Remote sensing observations of the coherent and non-coherent ring structures in the vicinity of Lesser Antilles [PDF]
Annales Geophysicae, 2007 The North Brazil Current Rings (NBCR) penetration into the Caribbean Sea is being investigated by employing a merged altimeter-derived sea height anomaly (TOPEX/Poseidon, Jason-1 and ERS-1, 2), the ocean surface color data (SeaWiFS) and Global Drifter
R. C. Cruz Gómez, S. N. Bulgakov
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Isolated Word Speech Recognition Using Mixed Transform
Journal of Engineering, 2023 Methods of speech recognition have been the subject of several studies over the past decade. Speech recognition has been one of the most exciting areas of the signal processing.
Sadiq Jassim Abou-Loukh +1 more
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Uniform Estimates for Damped Radon Transform on the Plane
Abstract and Applied Analysis, 2013 Uniform improving estimates of damped plane Radon transforms in Lebesgue and Lorentz spaces are studied under mild assumptions on the rotational curvature. The results generalize previously known estimates.
Youngwoo Choi
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The Journal of Engineering, 2019 Geosynchronous synthetic aperture radar (GEO SAR) has the characteristics of wide coverage and short revisit time, which makes GEO SAR moving target indication more valuable than other platforms.
Ying Zhang +4 more
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Results in estimates for k-plane transforms [PDF]
Surveys in Mathematics and its Applications, 2022 This is an expository paper. We give proofs of some results of M. Christ (1984) and S. W. Drury (1984) related to k-plane transforms. Also, we give proofs for some results on interpolation appearing in estimating k-plane transforms.
Shuichi Sato
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Comparison problems for Radon transforms
Advances in Mathematics, 2023 26 ...
Koldobsky, Alexander +2 more
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UAV target detection and parameter estimation in non-homogeneous clutter
The Journal of Engineering, 2019 Aiming at the problem of UAV target detection and parameter estimation in non-homogeneous clutter with STLFMCW radar, a SK-CFAR detector is proposed based on the local spectrum refinement.
Rui Huang, Xiao-Yong Du, Wei-Dong Hu
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Inversion of weighted Radon transforms via finite Fourier series weight approximations [PDF]
, 2013 International audienceWe consider weighted Radon transforms on the plane. We show that the Chang approximate inversion formula for these transforms admits a principal refinement as inversion via finite Fourier series weight approximations.
Guillement, Jean-Pol, Novikov, Roman
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Riesz transforms on the Hardy space associated with generalized Schrödinger operators
Journal of Inequalities and Applications, 2019 Let L=−Δ+μ $\mathcal{L}=-\Delta +\mu $ be a generalized Schrödinger operator, where the measure μ is a nonnegative Radon measure. In this paper, we establish the molecular characterization of the Hardy type space HL1(Rn) $H^{1}_{\mathcal{L}}(\mathbb{R ...
Yixin Wang, Pengtao Li
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