地震射线通过两点的最快的路径，通常根据费马原理确定。
The fastest route that a seismic ray can travel between two points, generally dictated by Fermat's principle.
综述了用网络最短路径算法求解地震射线追踪问题的原理、方法技术以及存在问题和改进措施。
The principle and method of seismic raytracing with shortest path algorithm in networks are discussed, the relevant drawbacks in which and improved measures are also analyzed.
射线追踪的速度和精度直接影响地震资料的静校正和偏移成像的质量。
The speed and precision of ray tracing affect the quality of statics and migration for seismic data.
本文由射线理论出发，简要地阐述了浅层折射地震层析成像方法的原理，并给出了应用实例。
In this paper, the method and principle of the shallow refraction seismic tomography for the ray theory is briefly expounded and applied samples are provided.
空间谱估计是阵列信号处理的一个重要分支，近年来在雷达、通信、声纳、地震、射线天文等科技领域取得了极为广泛的应用。
Spatial spectrum estimation is an important area in array signal processing, which is widely used in radar, communication, sonar, earthquake, chronometer and other aspects of science and technology.
在研究井间地震和逆VSP联合层析成像时，充分考虑了坡射线在纵、横向非均习介质中的弯曲效应。
The curvature effect of wave rays in vertically and horizontally-nonuniform medium must be considered in making joint tomography of interborehole seismic data and inverse VSP data.
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。
It is based on the least square of the difference between the real reflection first break time and corresponding modeled ray-tracing travel time.
本文提出的“射线参数法”，可由多道地震记录谱直接估算层速度或层速度线性梯度值。
A new method, the ray parameter method, is presented in this paper to derive velocity - or its linear gradient-depth information, directly from multi-channel seismic data.
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 problem of the seismic wave travel path in the nonhomogeneous medium is often mentioned in seismic sequence analysis by means of rapid ray tracing.
在研究地壳结构的人工源宽角反射地震资料解释中，常规宽角反射波走时和射线路径计算大都假定地壳模型为层状块状均匀介质。
Layered and blocked homogeneous models are usually used to calculated travel times and ray paths of wide-angle reflection waves in interpreting wide-angle reflection data of deep seismic sounding.
高斯射线束方法是将波动方程和射线理论相结合的一种地震正演模型方法。
Gaussian beam method is essentially a seismic forward modeling method that combines wave equation and ray theory.
利用平面射线理论和方法，推导出单面边坡地震的高程放大效应理论解，可用于描述边坡临空面对地震波的反射，反映边坡的高程放大效应。
Planar ray theory is used to deduce the analytic solution of the elevation amplification effect on a single-free-face slope in seismic engineering.
以几何光学为基础的复射线理论已在激光、微波、声学和地震波等学科领域获得了广泛应用。
Complex ray theory, based on geometrical optics, has been found to have many applications in areas of laser, microwave, acoustics, seismology etc.
目前，地球内部的仅有数据就是地震波的射线路径；该路径由地球内部不同层圈反射和折射。
At the moment, the only data on the earth's interior are the paths of earthquake waves that are reflected and refracted by the various layers of the planet's interior.
介绍了利用反射走时联合反演地震界面起伏形态和速度横向分布的方法。正问题采用了一种简单而有效的二维介质中两点射线追踪方法。
This paper describes a joint inversion method of the topography of seismic interfaces and lateral velocity distribution using travel times of reflections.
这个方法使用来自远地地震的地震波的速度以绘制地壳和上地幔的3 - D图像- - -和医学CT扫描仪用X射线绘制人体的方法相似。
This method USES the speeds of seismic waves from distant earthquakes to map features of the crust and upper mantle in 3-d-similar to the way medical CT scans use x-rays to map the human body.
基于三维射线跟踪的微变网络方法和波前重建思路 ，提出一种适用于三维复杂介质地震波走时的快速算法。
This paper presents a three-dimensional propagation model for path-loss prediction in an urban microcell, based on ray-tracing techniques.
基于三维射线跟踪的微变网络方法和波前重建思路 ，提出一种适用于三维复杂介质地震波走时的快速算法。
This paper presents a three-dimensional propagation model for path-loss prediction in an urban microcell, based on ray-tracing techniques.
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