Rain attenuation measurement techniques are studied with appropriate prediction of rain attenuation at Ku-band for Koreasat 6. This is accomplished by the establishment of experimental setup in Mokdong at 12.25 GHz link. The databases are analyzed for three years, 2013 till 2015. During observation period, rainfall rate of 50 mm/hr is obtained which is measured by OTT Parsivel showing the signal attenuated by 10.7 dB for 0.01% of the occurrence. Comparison with the measured data demonstrates that the proposed technique provides sufficiently accurate estimation for Ku-band signal attenuation in site specifically whose effectiveness is performed through the statistical analysis against the established rain attenuation models. The proposed technique is judged through the error matrices where relative error margins of 52.82, 4.11, and 23.64% are obtained for 0.1%, 0.01%, and 0.001% of the occurrence.

中文翻译：

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韩国Ku-Band在天地路径上的降雨衰减研究

研究了降雨衰减的测量技术，并针对韩国卫星6对Ku波段的降雨衰减进行了适当的预测。这是通过在12.25 GHz链路的木洞建立实验装置来完成的。对数据库进行了从2013年到2015年的三年分析。在观测期间，获得的降雨速率为50 mm / hr，这是通过OTT Parsivel测量得出的，信号衰减了10.7 dB，发生率为0.01％。与实测数据的比较表明，所提出的技术为现场的Ku波段信号衰减提供了足够准确的估计，具体而言，其有效性是通过针对已建立的降雨衰减模型的统计分析来执行的。通过误差矩阵判断所提出的技术，其中相对误差容限为52.82、4.11和23。