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Frequency scaling of rain attenuation for satellite communication links

机译:卫星通信链路降雨衰减的频率定标

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One year of copolarized signal data from the OLYMPUS satellite's 12, 20, and 30 GHz beacons were examined for frequency scaling of attenuation. The statistics of the ratios of attenuation in dB for the frequency pairs 30/20, 20/12, and 30/12 GHz computed at each 0.1 s-sample instant were found to be nearly independent of fade depth. It was found that attenuation in dB scales with frequency to the 1.9 power. Also, attenuation ratios computed from the separate statistics of attenuation at each frequency for the same level of occurrence are very close to those found from instantaneous attenuation ratios.
机译:对来自OLYMPUS卫星的12、20和30 GHz信标的一年同极化信号数据进行了衰减的频率缩放。发现在每个0.1 s采样瞬间计算的频率对30 / 20、20 / 12和30/12 GHz的衰减比(以dB为单位)几乎与衰减深度无关。发现以dB为单位的衰减随频率缩放至1.9功率。同样,对于相同的发生水平,从每个频率的衰减统计数据中得出的衰减率与从瞬时衰减率中得出的衰减率非常接近。

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