Améliorations du modèle pour le calcul des atténuations dues à la pluie sur un un trajet Terre-espace et étude de sensibilité aux paramètres

It is shown that the integral proposed by Misme and Fimbel for the prediction of the distribution of attenuations due to rain on a terrestrial path from the knowledge of the rain rate distribution in its neighborhood can, under some simplifying assumptions, be analytically transformed. Although the final expression is relatively involved, it is shown that its most important term agrees with the expression proposed by Assis and Einloft to perform the same prediction. This indicates that the method proposed by the latter authors is an approximate solution for the Misme and Fimbel integral. Rain attenuation values are also calculated by each prediction method for the same percentage of time, assuming a large number of combinations of input parameters, in order to display the relative difference between the results yielded by them. The obtained results show that the simplification introduced by Assis and Einloft on the Misme‐Fimbel method has no bearing on the agreement of its prediction with those obtained by other techniques.

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Améliorations du modèle pour le calcul des atténuations dues à la pluie sur un un trajet Terre-espace et étude de sensibilité aux paramètres

Cited by 3 publications

References 6 publications

Affaiblissements calculés pour des liaisons Terre-satellite en France

Affaiblissements calculés pour des liaisons Terre-satellite en France

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An analytical and numerical comparison between two methods for the prediction of distributions of attenuations due to rain on terrestrial paths

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