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首页> 外文会议>European Microwave Conference >Signal Reduction by Tree Leaves in Low- THz Automotive Radar
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Signal Reduction by Tree Leaves in Low- THz Automotive Radar

机译：低THz汽车雷达中的树叶减少信号

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In this study, the attenuation of 300 GHz signal propagating through a layer of leaves which can built upon the antenna radome is investigated. Three set of leaves (Lauren, Birch, Willow) are chosen in this measurement as likely obscurants which can stick to automotive radar radome and cause signal degradation. Transmissivity through uniform layer of the leaves with different water contents is measured. The water content is estimated in leaves drying gradually. The complex permittivity of the leaves with different water contents is estimated and these values are used to calculate the transmissivity through the uniform layer of leaves. Comparison of transmissivity in equivalent water layer with that of leaves having the same water content is made. Measured transmissivity through leaves is compared with that obtained by theoretical model.
机译：在这项研究中，研究了传播通过可以在天线天线罩上建立的一层叶子的300 GHz信号的衰减。在此测量中，选择了三组叶子（Lauren，Birch，Willow）作为可能的遮盖剂，它们会粘在汽车雷达天线罩上并导致信号衰减。测量通过具有不同水分含量的叶片的均匀层的透射率。逐步干燥的叶子中的含水量是估计值。估算具有不同水分含量的叶片的复介电常数，并将这些值用于计算穿过均匀叶片层的透射率。比较了当量水层与具有相同水分含量的叶片的透射率。将通过叶片测得的透射率与通过理论模型获得的透射率进行比较。

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