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本文报导了利用天狼星(SIRIO—1)卫星进行的利用辐射计和卫星信标测量星地路径雨致衰减对比实验的主要结果。如果能够获得正确的有效雨滴温度,辐射计将是估中、低量值的星地路径雨致衰减的有效工具。本文还对一些估算有效雨滴温度的经验公式进行了评估。所获得的结果将对利用辐射计开展星地路径电波传播研究有实用意义。
This paper reports the main results of a comparative experiment on the attenuation of rain due to rain in the satellite path using radioscopes and satellite beacons using the SIRIO-1 satellite. If the correct effective raindrop temperature can be obtained, the radiometer will be an effective tool for assessing the attenuation of moderate and low magnitude ground path rain. Some empirical estimates of effective raindrop temperatures have also been evaluated. The results obtained will be of great significance for the research on the use of radiometers to carry out the propagation of star ground paths.