Estimates of Communication Satellite System Degradation Due to Rain

by Nathaniel E. Feldman


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Rain influences the performance of a communication satellite link not only by attenuating the signal, but also by adding thermal noise to the other sources of sky noise. This paper (1) combines all sources of noise, including rain, as a function of frequency and elevation angle; and (2) presents estimates of time distributions of degradation of the down link due to rain for various system noise temperatures in the absence of rain.

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