A comparative study of ray tracing and FDTD for indoor propagation modeling
A comparative study of ray tracing and FDTD for indoor propagation modeling
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光线追踪和FDTD室内传播建模的比较研究
DOI：
10.1109/vetec.1998.683705
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
H. R. Anderson
中科院分区：
文献类型：
--
作者：
K. A. Remley;A. Weisshaar;H. R. Anderson
射线追踪是一种高频近似，用于特定地点的传播建模。在高频近似中，单独的散射元素对物体或物体集合的影响被独立地考虑。然而，随着散射体尺寸接近操作波长，高频近似中的一些假设变得无效。一个数值实验，旨在显示依赖的特征尺寸的光线跟踪方法。比较了时域有限差分法（FDTD）提供的全波三维电磁仿真和基于射线追踪的仿真。仿真结果和从这些实验中获得的信息的后果进行了讨论。
Ray tracing is a high frequency approximation used for site-specific propagation modeling. In the high frequency approximation, the effect of the individual scattering elements on a body or collection of bodies are considered independently. However, as the scatterer size approaches the wavelength of operation, some of the assumptions in the high frequency approximation become invalid. A numerical experiment designed to show the dependence of the ray tracing method on the feature size is presented. Comparison is made between a full-wave, 3-D electromagnetic simulation provided by the finite difference time domain (FDTD) method and a simulation based on ray tracing. Simulation results are presented and the consequences of the information obtained from these experiments are discussed.
影响因子：
4.1
作者：
BERENGER, JP
通讯作者：
BERENGER, JP