Results 251 to 260 of about 3,113 (292)
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Astronomical solar radiation simulation based on DEM in Wuyishan mountainous areas
SPIE Proceedings, 2008Digital Elevation Models (DEM) data (90mx90m) reflected by the NASA Shuttle Radar Topography Mission (SRTM) are used as basic information source to overlay digital slope models and digital aspect models, which are applicable to the mountainous terrain of astronomical solar radiation distributed model.
Shaogang Wang +3 more
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Computer simulations of imaging astronomical objects through Kolmogorov turbulence
2017 2nd International Conference on Image, Vision and Computing (ICIVC), 2017Two-dimensional mathematical modeling and simulations are carried out to observe a reference and a binary star in the absence and presence of a Kolmogorov turbulence via ground-based optical telescopes. This involve the quantitative assessment of the modulation transfer function (MTF) of a reference star, the Fourier magnitude (FM) and the ...
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A versatile turbulence simulator for high-resolution imaging studies of astronomical targets
Adaptive Optics Systems VII, 2020We describe versatile turbulence simulator for testing and calibration of new techniques for high-resolution imaging of objects outside the Earth’s atmosphere using ground-based instrumentation. Examples here include: dynamic aperture diversity, wave front sensing using multi-aperture phase retrieval, and free-space beam propagation for rapidly re ...
Caleb Abbott +4 more
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Changes in the Unchangeable: Simulation of Transient Astronomical Phenomena with Stellarium
Proceedings of the International Astronomical Union, 2018AbstractThe open-source desktop planetarium Stellarium has become very popular in astronomical education and outreach. Our recent changes aim for its applicability in historical and archaeoastronomical simulation contexts. Apart from visualizing the seemingly perpetual regular motions of the celestial bodies, it can be used to visualize and demonstrate
Georg Zotti, Alexander Wolf
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Simulating Astronomical Instrumentation Constants, Formulae and Other (Hopefully!?) Useful Stuff
2023Constants, formulae and other (hopefully!?) useful stuff simulating the behaviour and performance to be expected from astronomical instrumentation is collected.
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SPIE Proceedings, 2011
Anisoplanatism refers to the fact that the turbulence-induced wavefront distortions for propagation paths from the observed object with even slightly different propagation directions can be considerably different. A numerical simulation method of anisoplanatic imaging through volume atmospheric turbulence has been developed in this paper.
Chaolan He, Honggang Wei, Mangzuo Shen
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Anisoplanatism refers to the fact that the turbulence-induced wavefront distortions for propagation paths from the observed object with even slightly different propagation directions can be considerably different. A numerical simulation method of anisoplanatic imaging through volume atmospheric turbulence has been developed in this paper.
Chaolan He, Honggang Wei, Mangzuo Shen
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A Simulating Experiment on the Ancient Chinese Astronomical Clock Tower
2007It is very helpful and illuminating to utilize a new method to reconstruct an ancient machine which does not exist now. This paper introduces a research experiment with the computer simulation on the astronomical clock tower built in ancient China. We have set a simulation model with computer software and tried to reconstruct the ancient machine and ...
Gao Xuan, Lu Zhen
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Microscopic Simulations of Electrochemical Double-Layer Capacitors
Chemical Reviews, 2022Guillaume Jeanmairet +2 more
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Improving the Accuracy of Atomistic Simulations of the Electrochemical Interface
Chemical Reviews, 2022Ravishankar Sundararaman +1 more
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