Results 21 to 30 of about 101,450 (295)
Application of ionospheric tomography for high frequency oblique incidence ray tracing
Annals of Geophysics, 2016 Recognizing the applicability of tomographic imaging in the ionosphere, the reconstruction method has been applied to generate more realistic low latitude ionospheric background based on the Ionex TEC data and also direct measurement TEC data over West ...
Sandip Nandi, Bijoy Bandyopadhyay
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A new hybrid geometrical optics and radiance based scattering model for ray tracing applications [PDF]
, 2005 This paper presents a new hybrid geometrical optics (GO) and radiance based rough surface scattering model for use in ray tracing propagation models. The reflectance model includes the effects of both specular and diffuse reflection.
Ng, KH, Nix, AR, Tameh, EK
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On the eigenmodes of periodic orbits for multiple scattering problems in 2D [PDF]
, 2018 Wave propagation and acoustic scattering problems require vast computational resources to be solved accurately at high frequencies. Asymptotic methods can make this cost potentially frequency independent by explicitly extracting the oscillatory ...
Huybrechs, Daan, Opsomer, Peter
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And…Action! Setting the Scene for Accurate Visual CFD Comparisons Using Ray Tracing
Journal of Marine Science and Engineering, 2021 Increased graphical capabilities of contemporary computer hardware make ray tracing possible for a much wider range of applications. In science, and numerical fluid mechanics in particular, visual inspections still play a key role in both understanding ...
Maarten Klapwijk, Sébastien Lemaire
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A new heuristic geometrical approach for finding non-coplanar multiple edge diffraction ray paths [PDF]
, 2006 Rooftop diffraction can contribute significantly to the propagation path loss in outdoor microcellular environments. For non-coplanar multiple edges, the finding of exact ray paths requires a complex algebraic analysis that is infeasible for rapid ...
Ng, KH, Nix, AR, Tameh, EK
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RAY TRACING RENDER MENGGUNAKAN FRAGMENT ANTI ALIASING
JUTI: Jurnal Ilmiah Teknologi Informasi, 2008 Rendering is generating surface and three-dimensional effects on an object displayed on a monitor screen. Ray tracing as a rendering method that traces ray for each image pixel has a drawback, that is, aliasing (jaggies effect). There are some methods
Febriliyan Samopa, Wawan Mardian
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Transient optical simulation by coupling elastic multibody systems, finite elements, and ray tracing
Journal of the European Optical Society-Rapid Publications, 2023 Transient dynamical–thermoelastic–optical system simulation is an important expansion of classical ray tracing through rigid, resting lenses because the operating performance of high-precision optical systems can be influenced by dynamical excitations or
Hahn Luzia +2 more
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Massively Parallel Ray Tracing Algorithm Using GPU
, 2015 Ray tracing is a technique for generating an image by tracing the path of light through pixels in an image plane and simulating the effects of high-quality global illumination at a heavy computational cost.
Huang, Xiang, Lin, Jianbiao, Qin, Yutong
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A Study on mm-Wave Propagation in and Around Buildings
IEEE Open Journal of Antennas and Propagation, 2023 mm-waves are envisaged as a key enabler for 5G and 6G wireless communications, thanks to the wide bandwidth and to the possibility of implementing large-scale antenna arrays and advanced transmission techniques, such as massive MIMO and beamforming, that
Leonardo Possenti +5 more
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A Ray-Tracing Model of the Vela Pulsar [PDF]
, 2001 In the relativistic plasma surrounding a pulsar, a subluminal ordinary-mode electromagnetic wave will propagate along a magnetic field line. After some distance, it can break free of the field line and escape the magnetosphere to reach an observer.
C. Hirano +3 more
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