本文提出了一种能有效预测微小区环境中电波传播的射线跟踪算法——基于虚拟源二叉树的射线跟踪算法。

This paper provides an effective ray tracing method for prediction of microcellular radio propagation, which is called a ray tracing method based on virtual source binary tree.

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本文提出的光子虚拟源模型能够较为精确地模拟计算任意形状和强度的外照射放射治疗射束分布。

The proposed photon virtual source model is suitable for accurately simulating arbitrary shape and intensity distributions of external beam.

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本文在参照了镜像法、射线管法等射线跟踪思想的基础上，提出了一种有效的基于虚拟源树的射线跟踪模型。

Based on Image Theory and tube-tree method, an applicable ray tracing method based on virtual source tree was presented in this paper.

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