Journal ArticleDOI
Statistical Distribution of Integrated Liquid Water and Water Vapor Content From Meteorological Reanalysis
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In this article, a worldwide modelling of integrated liquid water and water vapor content distributions is proposed and evaluated to predict attenuation for Earth-space communication systems operating at frequencies higher than 10 GHz.Abstract:
A worldwide modelling of integrated liquid water and water vapor content distributions is proposed and evaluated. The knowledge of those distributions is valuable to predict attenuation for Earth-space communication systems operating at frequencies higher than 10 GHz.read more
Citations
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Journal ArticleDOI
Cloud Attenuation Statistics Prediction From Ka -Band to Optical Frequencies: Integrated Liquid Water Content Field Synthesizer
TL;DR: A unified space-time model for the prediction of induced attenuation due to clouds for frequencies above Ka-band up to optical range is presented and shows encouraging results.
Journal ArticleDOI
Optimum Monthly Based Selection of Ground Stations for Optical Satellite Networks
TL;DR: The monthly variation of cloud coverage statistics is investigated and exploited for the optimum selection of optical ground stations for satellite communication networks at optical frequencies.
Journal ArticleDOI
Capacity Statistics Evaluation for Next Generation Broadband MEO Satellite Systems
Charilaos I. Kourogiorgas,Nikolaos K. Lyras,Athanasios D. Panagopoulos,Daniele Tarchi,Alessandro Vanelli-Coralli,Alessandro Ugolini,Giulio Colavolpe,Pantelis-Daniel Arapoglou +7 more
TL;DR: A system study investigating the option of using Q/V- band, or even optical wavelengths, instead of Ka-band, to deliver substantially higher system capacity is reported on.
Journal ArticleDOI
Cloud Free Line of Sight Prediction Modeling for Optical Satellite Communication Networks
TL;DR: Analytical models for the prediction of cloud-free line-of-sight (CFLOS) probability for a single optical satellite link and for multiple spatially separated optical satellite links are presented.
Journal ArticleDOI
Distribution of Tropospheric Water Vapor in Clear and Cloudy Conditions from Microwave Radiometric Profiling
TL;DR: In this article, a dataset gathered over 369 days in various midlatitude sites with a 12-frequency microwave radiometric profiler is used to analyze the statistical distribution of tropospheric water vapor content (WVC) in clear and cloudy conditions.
References
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Journal ArticleDOI
Numerical solution of initial boundary value problems involving maxwell's equations in isotropic media
Abstract: Maxwell's equations are replaced by a set of finite difference equations. It is shown that if one chooses the field points appropriately, the set of finite difference equations is applicable for a boundary condition involving perfectly conducting surfaces. An example is given of the scattering of an electromagnetic pulse by a perfectly conducting cylinder.
Journal ArticleDOI
A new FDTD algorithm based on alternating-direction implicit method
TL;DR: In this article, a new finite-difference time-domain (FDTD) algorithm is proposed in order to eliminate the Courant-Friedrich-Levy (CFL) condition restraint.
Journal ArticleDOI
Toward the development of a three-dimensional unconditionally stable finite-difference time-domain method
TL;DR: In this article, an unconditionally stable three-dimensional (3-D) finite-difference time-method (FDTD) is presented where the time step used is no longer restricted by stability but by accuracy.
Journal ArticleDOI
An updated model for millimeter wave propagation in moist air
TL;DR: In this article, a practical atmospheric millimeter-wave propagation model (MPM) is proposed to predict attenuation for dry air at 2.5-430 GHz. But the model is limited to frequencies below 300 GHz and the number of spectroscopic parameters can be reduced to less than 200.
Journal ArticleDOI
New prediction method of cloud attenuation
Erkki Salonen,S. Uppala +1 more
TL;DR: In this article, a new method for cloud attenuation calculation on an earth-satellite link is presented, which uses temperature and humidity profiles as input parameters, and has been applied to radiosonde measurements and to the gridded data of the numerical analyses of ECMWF.
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