Abstract
The effect of rain on radio propagation depends on the raindrop dimensions and shapes. For spherical raindrops, results of a statistical analysis of measurements are presented: the parameters of the raindrop size distribution as a function of rainfall rate. Attenuation constants and backscatter coefficients are deduced from these results in fonction of rainfall rate.
Analyse
L’influence de la pluie sur la propagation des ondes radioélectriques dépend de la forme des gouttes et de leurs dimensions. Pour des gouttes sphériques, on présente les résultats d’une analyse statistique des mesures: les paramètres de la loi de répartition des gouttes selon leur diamètre en fonction de l’intensité de précipitation. On en déduit l’affaiblissement linéique dû à la pluie et le coefficient de rétrodiffusion en fonction de l’intensité de précipitation.
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Li, H.J., Zhang, Z.W. A study of raindrop size distributions in central and northwest China and their effects on some propagation parameters for wavelengths from 0.86 cm to 10 cm. Ann. Télécommunic. 35, 405–410 (1980). https://doi.org/10.1007/BF03003519
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DOI: https://doi.org/10.1007/BF03003519
Key words
- Wave propagation
- Centimetric wave
- Rain
- Water drop
- Size
- Statistical study
- Wave attenuation
- Back-scatter
- China