Abstract
Rain attenuation caused by electromagnetic scattering and absorption is a major design parameter for setting up satellite communication systems operating at frequencies above 10 GHz. In this paper, a method for predicting rain attenuation in terrestrial point-to-point line of sight links at 97 GHz is proposed using previously available experimental data obtained in the south of UK over a period of more than a year. Rainfall rate and percentage of time are used as input data in the proposed prediction method. Results show that our prediction method based on artificial neural networks reveals very good agreement with the experimental data.
Résumé
L’affaiblissement par la pluie dû à la diffusion et à l’absorption des ondes électromagnétiques est un des paramètres principaux dans la conception de systèmes de radiocommunication terrestre fonctionnant à des fréquences supérieures à 10 GHz. Uarticle propose une méthode pour prédire Vaffaiblissement par la pluie sur une liaison point à point en visibilité directe à 97 GHz, en utilisant des résultats expérimentaux disponibles qui avaient été obtenus dans le Sud du Royaume-Uni pendant une durée de plus d’une année. L’intensité de pluie et le pourcentage de temps sont les données d’entrée pour la méthode de prévision proposée. Les résultats montrent que cette méthode, fondée sur des réseaux neuronaux, est en très bon accord avec les données expérimentales.
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Develi, I. A method for predicting rain attenuation in terrestrial point-to-point line of sight links at 97 GHz. Ann. Telecommun. 62, 1035–1044 (2007). https://doi.org/10.1007/BF03253304
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DOI: https://doi.org/10.1007/BF03253304
Key words
- Electromagnetic wave propagation
- Rain
- Attenuation
- Millimetric wave
- Live of sight propagation
- Radiocommunication
- Forecast model
- Neural network.