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PROPAGATION CHARACTERISTIC ESTIMATION DEVICE, PROPAGATION CHARACTERISTIC ESTIMATION METHOD, AND PROPAGATION CHARACTERISTIC ESTIMATION PROGRAM

机译:传播特性估计装置,传播特性估计方法和传播特性估计程序

摘要

PROBLEM TO BE SOLVED: To provide a propagation characteristic estimation device capable of reducing a calculation load and saving memory capacity required for executing calculation while improving calculation accuracy of a propagation characteristic estimation value.SOLUTION: A propagation characteristic estimation device for estimating a propagation characteristic in a radio communication system comprises: a topographical database previously storing topographical data; a building database previously storing building data; profile creation means for creating a profile which adds height of a building to each position of the building between transmission and reception spots, by referring to topographical data stored in the topographical database and building data stored in the building database; diffraction loss calculation means for calculating a diffraction loss by referring to the profile; line-of-sight propagation loss calculation means for calculating a line-of-sight propagation loss; and propagation characteristic estimation means for calculating an estimation value of the propagation characteristic on the basis of the diffraction loss and line-of-sight propagation loss.
机译:解决的问题:提供一种传播特性估计装置,其能够减轻计算负荷并节省执行计算所需的存储容量,同时提高传播特性估计值的计算精度。解决方案:一种用于估计通信系统中的传播特性的传播特性估计装置。一种无线电通信系统,包括:预先存储地形数据的地形数据库;以及先前存储建筑物数据的建筑物数据库;轮廓创建装置,用于通过参考存储在地形数据库中的地形数据和存储在建筑物数据库中的建筑物数据来创建将建筑物的高度增加到建筑物的每个位置的发射点和接收点之间的轮廓。衍射损耗计算装置,用于通过参照轮廓来计算衍射损耗;视线传播损耗计算装置,用于计算视线传播损耗;传播特性估计装置,用于基于衍射损耗和视线传播损耗来计算传播特性的估计值。

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