D ray-tracing的意思|示意

In a 2-d structure, the calculation results of a hybrid method, which is based on combing ray tracing and finite-difference time-domain (FDTD) method, agree well with the measurement.

在二维情形中，基于结合射线跟踪法和时域有限差分法(FDTD)的室内无线传播混合建模方法对于室内无线传播的预测结果与测量结果吻合较好。

Based on Fermat's principle, the paper USES full-path iterative algorithm to realize 3-d VSP two-point ray tracing in volume element model.

本文基于费马原理，利用全路径迭代算法实现体元模型中的三维VSP两点射线追踪。

A new method based on phase tracking algorithm and ray tracing algorithm is proposed for measuring the three-dimensional (3-d) shape of object in water.

提出一种基于相位追踪和光线追迹算法测量水中物体三维形貌的新方法。

The radome is considered as multilayer medium flat, the 3-D ray tracing method is used to build antenna-radome mathematical model for the radome electric performance computation.

结果表明这种方法可以用于电大尺寸波导裂缝阵天线一天线罩系统的电性能计算。