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- Promptly adjusting ray path system. 可快速调整的光路系统。
- Any outgoing ray path must be coincident with that of the returning ray. 任何出发的射线与返回的射线路径完全相同。
- The anisotropy associated with the earth's rotation results in a slight deflexion of the ray paths. 与地转有关的不均匀性会导致波向线产生轻微的偏转。
- A new method, is presented the ordinal wavefront reconstruction method to calculate minimum traveltimes and ray paths. 摘要建立了一种新的计算最小走时和射线路径的方法-有序波前重建法。
- A simple formula for ray path is derived from the Euler equation in continuous stratified medium. 根据欧拉方程对于连续性层状介质进行了方程推导,得出一个波的射线路径公式,公式形式尤其简单。
- This prper introduces the basic function and operational method of ARPA with Ray path ARPA as an example. 本文以Raypath ARPA为例,介绍ARPA的基本功能和使用方法。
- The results show that the wavefield snapshots based on a wave equation are similar to ray paths and can qualitatively describe the promulgation of seismic waves. 理论模型的实验结果表明基于波动方程的波场快照与射线路径具有很好的类比关系,可以定性地描述地震波的传播;
- Compared with the theoretical path, the error of the ray path got by the optimized shortest ray path tracing metho... 将该方法应用于最短射线路径追踪和折射波静校正等资料处理的过程中,可以减少运算量和运算时间。
- Shorter Barlows, or ones with too much magnification, only exacerbate the problem because the ray path entering the eyepiece is steeper. 短barlows,或那些太多的放大,不仅会加剧问题,因为射线路径进入目镜是陡峭。
- This paper introduces Bresenham line algorithm into the traveltime calculation of nodes to improve the accuracy of traveltime and ray path results. 在最小走时节点查寻中,结合使用快速排序算法与插入排序算法,替代以往方法中多采用的堆排序算法;
- The ray paths are circles. 射线路径呈圆弧状。
- It is difficult to locate CCP exactly due to the asymmetry of converted wave ray path and the de pendency of CCP on depth, offset, P-wave velocity, and S-wave velocity. 但由于转换波射线路径具有明显的不对称性,且转换点坐标是深度、炮检距、纵横波速度及倾角等多种因素的函数,使得CCP的定位十分困难。
- Firstly describing the surface with cubic spline function or linear function, then computing ray paths from given initial position and direction.Reflections and transmissions follow Snell law. 首先根据三次样条函数及线性函数来描述起伏地表以及地下界面,然后给定射线的初始点和初始方向,逐步计算射线路径。
- For simplifying the calculation of ray path changes caused by the optical wedge which is bound by the separating surface and the exit face of a prism, the paper provides a specific coordinate system and a regression approximative method. 文中给出选取分离面的一般原则,以及由分离面和棱镜出射面构成的光楔产生的光路变化计算,同时也给出能使其简化的坐标系和回归近似方法;
- In the paper, the wave ray path formula is obtained by the Euler equation in the continuousstratified medium. Through the use of the formula, we derive the velocity inversion formula forthe VSP data processing. 本文根据欧拉方程对于连续性层状介质进行了方程推导,得出一个波传播的射线路径公式,利用路径公式导出了VSP资料处理中的速度反演公式。
- They cleaved a path through the wilderness. 他们在荒原中开辟出一条路。
- We can quickly and properly acquire the traveltime and ray path of first-break through forward calculation on the near-surface model by using linear tranveltime interpolation ray tracing. 摘要利用线性旅行时插值射线追踪对近地表模型进行正演计算,可以快捷、准确地获得初至波走时和射线路径。
- In this paper starting from the ray path equations of a parabolic defocusing GRIN fiber lens with paraxial conditions, a equation to calculate the effective length of the fibre lens is derived. 从近轴条件下的光线轨迹方程出发,导出了计算抛物型发散梯度折射率纤维透镜有效长度的方程式,并讨论了该纤维透镜大端、小端对目标成像的孔径和视场。
- Seismic ray path is analytically calculated assuming a model of the square of slowness.For the model composed of a grid withvalues of model assigned at the grid points,a nonnegative matrix is formed. 文章采用平方慢度模型解析计算地震射线传播路径,就模型参数值在网格节点上的情形,可形成一个非负矩阵,这类似单元模型的路径长度矩阵。
- However, the ray path of seismic reflected wave in this region distorts seriously due to the effects of overthrust high speed layers, which make it difficult to interpret and image the structures. 受逆掩推覆高速体的影响,地震反射波射线路径发生严重畸变,在逆掩断层下盘产生断层阴影、虚假构造或构遣高点偏移等现象,给构造的解释与成图带来了困难。