Results 21 to 30 of about 392,818 (294)

Effects of rain attenuation on satellite communication link [PDF]

open access: yes, 2014
Rain attenuation is a major challenge to microwave satellite communication especially at frequencies above 10 GHz, causing unavailability of signals most of the time.
Chukwuneke, N.S.   +6 more
core   +1 more source

Comparison of Measured Rain Attenuation in the 12.25 GHz Band with Predictions by the ITU-R Model

open access: yesInternational Journal of Antennas and Propagation, 2012
Quantitative analysis and prediction of radio attenuation is necessary in order to improve the reliability of satellite-earth communication links and for economically efficient design.
Dong You Choi   +3 more
doaj   +1 more source

Prediction Method for Rain Rate and Rain Propagation Attenuation for K-Band Satellite Communications Links in Tropical Areas

open access: yesJournal of ICT Research and Applications, 2014
This paper deals with the prediction method using hidden Markov model (HMM) for rain rate and rain propagation attenuation for K-band satellite communication link at tropical area.
Baso Maruddani   +3 more
doaj   +1 more source

Attenuation Characteristics of Laser in Rain [PDF]

open access: yesProceedings of the 2016 International Conference on Computer Engineering, Information Science & Application Technology (ICCIA 2016), 2016
In the observation of laser signal transmission in the rain, the attenuation ratio with the change of the size of the raindrops, the smaller the smaller the attenuation. In Mie scattering theory, with Weibull distribution model of raindrop size distribution and calculate the laser beam transmission in the rain attenuation characteristics in rainfall ...
Bin Xu, Jun Xu, Yuewei Wei
openaire   +1 more source

Investigation of the unified rain attenuation prediction method with data from tropical climates [PDF]

open access: yes, 2014
The semi-empirical method recently proposed by Silva Mello and Pontes (SMP) for the prediction of rain attenuation in slant paths is investigated in this letter.
Olufeagba, B J   +6 more
core   +1 more source

Statistics of rain attenuation revisited [PDF]

open access: yes2011 XXXth URSI General Assembly and Scientific Symposium, 2011
Millimeter frequency satellite links are prone to variations in attenuation over a large range due to rain, more than 30 dB. Traditionally, it has been considered to be part of meteorological conditions, unavoidable variations. Statistical distributions have been fit-to-data type with little or no physical insight.
J. Bach Andersen   +2 more
openaire   +1 more source

Analysis of moderate and intense rainfall rates continuously recorded over half a century and influence on microwave communications planning and rain-rate data acquisition [PDF]

open access: yes, 1987
This paper is concerned with the statistical investigation of a massive data bank of 49 years of rainfall rate R continuously recorded in Barcelona using a rain-rate gauge with ten seconds response time.
Vilar, Enric   +3 more
core   +1 more source

Rain Attenuation Prediction for Terrestrial Microwave Link in Bangladesh [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2014
Rain attenuation is a major shortcoming of microwave transmission. As a subtropical country, Bangladesh is one of the highest rainy areas of the world. Thus, designing a terrestrial microwave link is a serious challenge to the engineers.
HOSSAIN Sakir
doaj  

Rain Attenuation at Terahertz

open access: yesWireless Engineering and Technology, 2010
Rain attenuation values were calculated using empirical raindrop-size distributions, which were, Marshall-Palmer (M-P), Best, Polyakova-Shifrin (P-S) and Weibull raindrop-size distributions, and also calculated using a specific rain attenuation model for prediction methods recommended by ITU-R.
openaire   +3 more sources

AI-Based Investigation and Mitigation of Rain Effect on Channel Performance With Aid of a Novel 3D Slot Array Antenna Design for High Throughput Satellite System

open access: yesIEEE Access
Rain attenuation poses a significant challenge for high-throughput communication systems. In response, this paper introduces an artificial intelligence (AI) model designed for predicting and mitigating rain-induced impairments in high-throughput ...
Ali M. Al-Saegh   +13 more
doaj   +1 more source

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