The general assumption in calculating static correction is that the near-surface ray-paths travel vertically, which does not conform with the actual travelling path of ray.
静校正计算时一般假设射线在近地表附近为垂直传播，这种假设往往与射线实际传播的路径不符。
By calculating the path between the lens and the sensor, the precise direction of a light ray can be reconstructed.
通过计算镜头和传感器之间的路径，可以重建一个具有精确方向的光线。
The problem of the seismic wave travel path in the nonhomogeneous medium is often mentioned in seismic sequence analysis by means of rapid ray tracing.
在地震层析研究中，常常涉及地震波在非均匀介质中的传播路径问题，故快速射线追踪是不可缺少的工具。
The self - adaptability grid technique was proposed to improve the mathematical property of ray path matrix.
为了改善射线路径矩阵的数学性质，提出了自适应网格技术。
Compared with the theoretical path, the error of the ray path got by the optimized shortest ray path tracing method is minimum.
相对于理论路径而言，优化最短射线路径法得到的射线路径误差较小。
As can be seen from the illustration, the sum of the values from a given ray crossing the segments in its path is zero.
从图中可看出，给定射线与其路径中的段的交叉值总和是零。
A correction model for Angle drift in target area is established through ray-tracing target area light path of ICF (Inertial Confinement Fusion) driver.
通过光线追迹ICF(惯性约束聚变)驱动器的靶场光路，建立靶场角漂的修正模型。
The method comprises the following steps: after parallel rays project to a target surface area element, acquiring a path parameter of each ray from incidence to reflection;
所述方法包括：当平行射线投向目标面元后，获取每条射线从入 射到反射的路径参数；
Starting from the ray path equation, object-image relationships are found and used to determine the equivalent focal length and the principal planes of tapered GRIN fiber.
本文从光线轨迹方程出发，推导了锥形梯度折射率纤维的物像关系式，并得出了它的等效焦距和主平面位置。
The figure shows the path of one ray from a point A of an extended source.
图显示出，一条来自于扩展光源A点的光线。
A direct tracing method of the laser ray-path is provided.
提供了一种激光光路的直接追踪方法。
This platform can simulate the ray tracing for a fixed frequency or sweeping frequencies, also can calculate the group path and the covered region of rays.
该平台可实现定频或扫频射线轨迹演示，计算各射线群路径，覆盖区域等功能。
Ray path tracing is a key step to apply geometrical theory of diffraction in solving the problems of high frequency electromagnetic scattering and radiating.
在高性能微波暗室技术设计中，由于静区指标较高，采用一般的几何光学技术不能进行准确计算，因此需采用几何绕射理论技术。
In the multi path communication scenario, it is needed to estimate the two dimensional angles and relative time delays of each multi path ray.
在多径传输的情况下，经常需要估计各路径的二维波达方向角度及相对时延。
In the multi path communication scenario, it is needed to estimate the two dimensional angles and relative time delays of each multi path ray.
在多径传输的情况下，经常需要估计各路径的二维波达方向角度及相对时延。
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