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Application of simulated annealing to deconvolution in astronomical speckle imaging
Optics Communications, 1991Abstract Monte-Carlo type simulated annealing has been investigated as an optimization procedure for reconstructing high spatial resolution astronomical images. In particular, the annealing method is shown to be a powerful technique for phase retrieval in connection with Knox-Thompson speckle correlation data.
E.J. Spillar, G.R. Ayers
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A set of student activities for the simulation of ancient and medieval astronomical observations
Physics Education, 2021Abstract A set of student activities is presented based on astronomical observations made by ancient and medieval astronomers. The activities are implemented using freeware planetarium software and can be accessed by astronomy educators or anyone with an interest in the history of astronomy.
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Journal of Applied Physics, 2005
A procedure is described for simulating the behavior of multimode, bolometric, astronomical interferometers. The procedure relies on the use of singular value decomposition to determine the fields on the sky and the fields at the detectors to which the individual elements of an interferometer can couple. The scheme can be used with any configuration of
Stafford Withington +2 more
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A procedure is described for simulating the behavior of multimode, bolometric, astronomical interferometers. The procedure relies on the use of singular value decomposition to determine the fields on the sky and the fields at the detectors to which the individual elements of an interferometer can couple. The scheme can be used with any configuration of
Stafford Withington +2 more
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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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The Stellarium Planetarium for the Simulation of the Astronomical Landscapes of Ancient Stargazers
SSRN Electronic Journal, 2016The paper is proposing several examples of the use of Stellarium, an open source free software planetarium, for simulating the astronomical landscapes of the ancient stargazers. Here we will focus on the motion of the stars, in particular with respect to the precession of Equinoxes. Usually, we consider that this precession was discovered by Hipparchus
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2008
We developed the planetary simulator that is able to simulate astronomical phenomena in the solar system. The planetary simulator can set not only target planet but also the planet of viewpoint. It can simulate planets' revolutions around the sun fixing viewpoint on another planet.
Masato Soga +2 more
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We developed the planetary simulator that is able to simulate astronomical phenomena in the solar system. The planetary simulator can set not only target planet but also the planet of viewpoint. It can simulate planets' revolutions around the sun fixing viewpoint on another planet.
Masato Soga +2 more
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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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High-performance computing simulations of self-gravity in astronomical agglomerates
Simulation, 2023Gonzalo Tancredi +2 more
exaly
Lenghu on the Tibetan Plateau as an astronomical observing site
Nature, 2021Chunguang Zhang +2 more
exaly