Results 11 to 20 of about 4,079 (261)
Sakarya University Journal of Computer and Information Sciences, 2021 Satellite beacon is a signal which does not modulated and sent to ground in constant frequency with a specific designed power. Beacon signals are used by ground station antenna users track the satellite easily.
Yasin Burak Kaya, Ümit Cezmi Yılmaz
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Weighted Mean Annual Rain Height Applied to Rain Attenuation Prediction on Earth-Space Links
International Journal of Antennas and Propagation, 2022 Rain height is crucial for rain attenuation prediction along slant paths, such as Earth-space links. The global digital map of the mean annual rain height is given in Recommendation ITU-R P.839-4.
Leke Lin +6 more
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IEEE Access, 2023 In the frontier of next generation communication system, the terahertz spectrum can be treated un-parallel as far as the implementation of wireless link with high data-rate is concerned.
Debraj Chakraborty +2 more
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On Frequency Scaling of Rain Attenuation
2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC), 2022 In our paper we deal with the generalized method of frequency scaling. From the attenuation known at one frequency, we determine the rain rate by the inverse procedure of any rain attenuation prediction model, which we then use to estimate the rain attenuation on another frequency. We compare the results on one hand with exact values, on the other hand
Fišer, O., Kovalchuk, M. (Maria)
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Attenuation Characteristics of Laser in Rain [PDF]
Proceedings 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
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Performance of Resource Management Techniques for Weather-Impacted Satellite Networks
Journal of Computer Networks and Communications, 2019 Signals transmitted via satellite networks at high frequency in the Ka, Q, and V bands are susceptible to degradation due to rain attenuation. Adaptive transmission techniques are usually employed to mitigate the effect of rain and improve users’ quality
Olugbenga Emmanuel Imole +1 more
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IEEE Access, 2018 In this paper, real measurements were conducted to investigate the impact of rain on the propagation of millimeter waves at 26 GHz. The measurements were accomplished using a microwave fifth generation radio link system with 1.3 km path length ...
Ibraheem Shayea +3 more
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Automated rain rate estimates using the Ka-band ARM zenith radar (KAZR) [PDF]
Atmospheric Measurement Techniques, 2015 The use of millimeter wavelength radars for probing precipitation has recently gained interest. However, estimation of precipitation variables is not straightforward due to strong signal attenuation, radar receiver saturation, antenna wet radome effects ...
A. Chandra +4 more
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Comparison of Measured Rain Attenuation in the 12.25 GHz Band with Predictions by the ITU-R Model
International 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
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Journal 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
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