Presentation Information

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[B-3-02]A Study on the Correlation between Rain Attenuation and Rainfall Rate in Ku Band and Ka Band Satellite Communications Links

〇Yasuyuki Maekawa¹, Yoshiaki Shibagaki¹ (1. Osaka Electro-Communication University)

Keywords:

Satellite communication,Rain attenuation,Rainfall rate,Occurrence time difference,Cross correlation

Using the data on rain attenuation and of Ku-band BS (11.84 GHz) radio wave rainfall rate measured over the past 30 years at Osaka Electro-Communication University (Neyagawa, Osaka), we investigated the time difference between their occurrence times and the cross-correlation between their fluctuation. Usually, rain attenuation occurring on the propagation path in the higher altitude is measured on the ground about 9 minutes earlier at most, but when their 10-minute average values are used, the two measurements are shown to agree well, enabling highly accurate estimation of rain attenuation from rainfall rate.

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