This paper presented a positioning model based on ray-tracing method.
提出了一种基于射线跟踪方法的定位模型。
N model is comparable to the accuracy of the ray-tracing and FDTD models.
型的精确度可与射线追踪及FDTD模型的精度相比拟。
In this paper, a soft shadow algorithm based on ray-tracing was introduced.
提出了一种基于光线跟踪的软阴影算法。
In this paper, a displacement mapping algorithm based on sphere ray-tracing is introduced.
文章提出了一种基于球形光线追踪的位移贴图算法。
For the smoke rendering, we take the approach of ray-tracing twice and achieve satisfactory results.
对于烟雾的渲染，利用两次光线投射的方法，得到了很好的烟雾效果。
An improved ray-tracing model based on traditional microwave propagation prediction models is presented.
在传统的电波传播预测模型的基础上，提出了一种基于射线跟踪法的改进模型。
The most accurate ray-tracing model is used firstly on the development simulation of resist exposed by electron beam.
在电子束曝光胶图形的三维显影模拟工作中，首次使用了最精确的三维线踪模型。
The transmission characteristic of hollow duct was described by using a ray-tracing method and compared with the lens duct.
用光线追迹方法描述了空心导管的传输特性，并与透镜导管做了比较。
Theprocess of the bottle beam generated from an axicon-lens system is described by a novel method based on the ray-tracing.
利用几何光学的光线追迹法形象地描述了轴棱锥透镜系统产生局域空心光束过程。
Analytical expressions of groove parameters are derived up to the forth order with (ray-tracing) theory of geometry optics.
根据几何光学的光线追迹理论，推导了光栅参量的四阶解析表达式。
Topics covered in geometrical optics include: ray-tracing, aberrations, lens design, apertures and stops, radiometry and photometry.
涵盖的主题包括：几何光学射线追踪，畸变，镜头设计，孔径和停止，辐射计和光度法。
The propagation of fast waves in the ion-cyclotron range of frequencies in the plasmas is investigated by using the ray-tracing method.
利用几何光学方法对离子回旋波频段内的快波在等离子体中的传播进行了研究。
It is based on the least square of the difference between the real reflection first break time and corresponding modeled ray-tracing travel time.
此法以反射地震资料中的观测初至旅行时与模型射线追踪旅行时之差的最小平方法为基础。
Changing model-building formula in traditional layered earth model, the paper presented a blocky structural model-building method for ray-tracing.
本文改变了传统的层状地层的建模方式，提出了一种射线追踪中块状结构的建模方法。
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。
Real computing case using blocky structure for model-building in rather complicated geologic structure and conducting ray-tracing by iteration is given in the paper.
文中给出了在十分复杂的地质结构中应用块状结构方法建模并用迭代追踪法进行射线追踪的计算实例。
This paper presents an effective radio wave propagation prediction model by using radiation sources tree for microcellular environment. This model is based on ray-tracing and UTD.
提出了一种有效的微蜂窝电波传播预测模型，该模型基于射线跟踪法和UTD理论，并使用辐射源树的方法。
According to ray-tracing formulas of crystal, calculated the critical angles of Nicol prism for incident ray in any direction. Achieves the polarization critical curves of Nicol prism.
根据光线在晶体中的轨迹公式，计算了任意方向入射光所对应的尼科尔棱镜的临界角，得到了尼科尔棱镜的偏振区的限制曲线。
Firstly, the system of parallel grating pair, in which the grating grooves is unparallel while the grating surfaces is parallel, has been studied with the tri-dimensional ray-tracing method.
首先，在三维空间内利用光线追迹法，对刻线不平行而光栅面平行时的压缩光栅对进行研究。
Ray-tracing method, which is one of the typical method in room-acoustic computer simulation, is discussed.
对房间声学计算机模拟方法中的经典方法之——声线跟踪法进行了分析。
In this paper, we present a new rapid ray tracing method -available visible area radiant point tree ray searching.
本文给出了一种新型的快速的射线追踪方法——有效可见区域辐射源树射线跟踪法。
Ray tracing algorithm is the main algorithm of creating the real graphic.
光线跟踪算法是生成真实感图形的主要算法之一。
By using the ray tracing method, the scattering from all cells of scatters under a certain radar resolution is mapped into the image pixels.
用射线跟踪法，按射程计算将散射投影在平面图像对应单元的像素点上，得到自然地表的雷达图像模拟。
Ray tracing is a classic method in synthesizing photorealistic image, It can accurately simulate the lighting effect of the whole scene.
而光线追踪是传统真实感图象合成的经典方法，能够精确模拟出景物的光照效果。
At last, the ray tracing modeling is applied to the actual PHS indoor distribution system project.
最后，射线跟踪模型被应用于实际的PHS室内覆盖系统工程中。
This paper provides an effective ray tracing method for prediction of microcell radio propagation.
本文提出一种能有效预测微小区环境中电波传播路径的射线跟踪算法。
Studying the inverse algorithms in detail, giving a new method about the fast inverse ray tracing.
对反向射线跟踪方法进行了细致研究，给出了进行快速反向射线跟踪的方法。
A parallel process method of ray tracing is proposed based on a BSP tree.
提出了一种基于BSP树的光线跟踪并行处理方法。
The paper explains the formation of radio holes in atmospheric duct based on ray tracing method, provides approximate expressions to determine the initial position of radio holes.
该文用射线跟踪法解释了大气波导中无线电盲区的形成原因，导出了计算无线电盲区起始位置的近似公式。
The paper explains the formation of radio holes in atmospheric duct based on ray tracing method, provides approximate expressions to determine the initial position of radio holes.
该文用射线跟踪法解释了大气波导中无线电盲区的形成原因，导出了计算无线电盲区起始位置的近似公式。
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