Water Content Estimation in Hydrous Soil Using AM Radio Broadcasting Waves

Takuma Kinoshita, F. Kuroki
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Abstract

The number of landslides in Japan has been increasing in recent years. The main cause of landslides is to increase the water content in soil and an antenna sensor to receive the AM radio wave has been proposed as a method for estimating soil water content. In this paper, the AM radio wave reception characteristics of this sensor were analyzed numerically From the results of the analysis, this sensor has the potential to predict deep-seated landslides, and the principle of operation of this sensor was clarified.
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利用调幅无线电波估算含水土壤含水量
近年来,日本的山体滑坡数量一直在增加。滑坡的主要原因是土壤含水量的增加,已经提出了一种接收调幅无线电波的天线传感器作为估计土壤含水量的方法。本文对该传感器的调幅无线电波接收特性进行了数值分析,从分析结果来看,该传感器具有预测深部滑坡的潜力,并阐明了该传感器的工作原理。
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