Propagation Considerations for Satellite Broadcasting at Frequencies Above 10 GHz
Propagation Considerations for Satellite Broadcasting at Frequencies Above 10 GHz
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频率高于 10 GHz 的卫星广播的传播注意事项
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
D. Rogers
中科院分区：
文献类型：
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作者：
D. Rogers
在10ghz以上的频率，对流层传播效应会显著改变信号的传输性能。地球-卫星（倾斜）路径上的重要现象包括大气气体、云和降水导致的衰减和天空噪声增加，雨滴和冰晶造成的去极化，以及折射率效应，特别是在低路径仰角时。本文综述了10ghz以上频率卫星广播传播现象的各种实际方面，重点介绍了Ku波段业务的近期实施。
At frequencies above 10 GHz, tropospheric propagation effects can significantly alter signal transmission performance. Important phenomena on earth-satellite (slant) paths include attenuation and sky noise increases resulting from atmospheric gases, clouds, and precipitation, depolarization by raindrops and ice crystals, and refractive effects, particularly at low path elevation angles. Various practical aspects of propagation phenomena for satellite broadcasting at frequencies above 10 GHz are reviewed in this paper, with emphasis on the near-term implementation Of services at Ku -band.