Three-ray multipath model 三径信道模型
In this paper we have developed a program for three dimensional ray tracing of whistler-mode waves in which the IGRF model was adopted.
本文给出了采用IGRF模型的哨声模波三维射线跟踪方程，并概述了射线跟踪模型及数值计算程序。
This paper presents a three-dimensional propagation model for path-loss prediction in an urban microcell, based on ray-tracing techniques.
基于三维射线跟踪的微变网络方法和波前重建思路 ，提出一种适用于三维复杂介质地震波走时的快速算法。
The researchers mapped these with high-powered X-ray beams to create a three-dimensional model of the surface of sediba's brain.
研究人员借助高功率X射线，描绘出了源泉种脑表面的三维模型。
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