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.

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。

youdao

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

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。

youdao

Combining the wavenumber integral model and virtual source method, a software for 3d scattering field from the buried target was developed.

基于波数积分声场模型和虚源方法，开发了可计算海底掩埋物体三维散射声场的模型软件。

youdao

But others, currently authorized through a local district but serving hundreds of students who come from other districts, use the establishment of a virtual charter school as a source of cash.

FORBES: The Next Step in Scott Walker’s Corporate Education Reform Agenda: Diploma Mills

Following a federal investigation, Second Life's parent company, Linden Lab, banned all gambling in the virtual world--a major source of its business.

FORBES: Magazine Article

The software leviathan stunned a rookery of Linux users yesterday at a conference and expo in Boston with the revelation that it will now provide technical support for the open-source software running on Virtual Server, and would make Virtual Server 2005 R2 available free.

FORBES: Magazine Article