Combining the Effects of Rain-Induced Attenuation and Depolarization in Digital Satellite Systems |
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| Authors: | Castel RE Bostian CW |
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| Institution: | Department of Electrical Engineering, Virginia Polytechnic and State University, Blacksburg, VA 24061; |
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| Abstract: | Rain depolarization causes crosstalk on a dual polarization communications link. The effects of depolarization can be expressed as a degradation of the carrier-to-noise ratio (CNR) which can then be combined with the rain-induced attenuation to yield an effective attenuation. The effective attenuation is computed for a hypothetical satellite link at 11, 14, 20, and 30 GHz. It is shown that at 20/ 30 GHz the increase in system margin required by dual polarized use is small. |
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