The tuning mechanism of two-segment DFB lasers is explained in terms of the fundamental phase and amplitude reflection properties of the waveguide gratings.
两节DF B激光器的调谐机理可根据波导光栅反射特性的基本相位和幅度来解释。
The offset panel allows correlation of a high amplitude reflection on a near trace with delayed refraction breaks on distant traces thus identifying the hazards.
由 炮检距汇集 图可将近道上的反射高振幅和远道上的折射延迟联系起来，从而确定危险区。
Reflection signals and high velocity noise change in amplitude and waveform with increasing offset between source and receiver.
反射信号和高速干扰的振幅和波形随着炮检距的增大而变化。
The amplitude variation of reflection were influenced and controlled by many factors.
地震波反射振幅的变化受诸多因素的影响和控制。
Based on previous data, this paper sums up the reflection texture and the variety of amplitude of the river sandstone body in a dip seismic section.
在参考前人资料的基础上，总结了在横切河道的地震剖面上河道砂岩体的反射形态、结构及振幅变化。
This algorithm USES ray tracing to calculate traveltime, and DE - rives reflection amplitude from wave field interface equation.
该算法使用射线追踪计算传播时间，应用波场界面方程计算反射振幅。
A method for extracting both effective reflection events and zero-offset trace signals is developed using the lateral coherence and the property that signal amplitude changes with offset.
本文利用信号的横向相关性和信号振幅随炮检距变化的特征，提出一种既能提取有效反射信号同相轴，又能提取零炮检距道信号的方法。
However, in the presence of amplitude variation with offset (AVO), and particularly at large offsets, reflection coefficients and polarities may differ significantly from those at normal incidence.
然而，在振幅随炮检距变化的情况下，即当偏移距范围很大时，无论是反射波的振幅还是极性都发生了非常大的变化。
The seismic reflection characteristics of volcanic rocks are mostly strong amplitude, apparent low frequency and the continuity is bad.
火山岩地震反射特征主要为强振幅、视低频，而且连续性差。
Studies have been made on the influences of the second order derivatives of the amplitude and phase of the reflection coefficient on the Gaussian pulse upon reflection from the dielectric mirrors.
研究了介质镜反射系数的振幅与位相二阶导数对飞秒高斯脉冲的影响。
The seismic reflection amplitude deals with a wide range of elepignts. Formation thickness is taken as one of the factors affecting the seismic reflection amplitude.
地震反射波振幅与很多因素有关，地层厚度是影响地震反射波振幅的因素之一。
A seismic reflection from that zone will have a high amplitude.
此区的地震反射有高振幅。
In an area, reflection amplitude depends on velocity and density, which depend upon the porosity and elastic modulus of rocks.
一个地区的油气层的反射振幅大小是由该区的速度和密度决定的，而这两种物性又取决于岩石的孔隙度和弹性模量。
The width of the reflection pulse is increased and its amplitude reduced as the rise time of incident wave delays, which may to some extent be good for the detection of insulation faults.
入射波上升时间增长，反射脉冲变宽，幅值降低，但一定程度上有利于检测出绝缘故障。
And in electromagnetic theory the dielectric of sea water is not constant. After the reflection from ocean surfaces, the amplitude and phase of radio wave can be both changed.
电磁理论上，海水是非均匀的导电媒质，经海面反射后的电波其幅度和相位均会发生变化。
And in electromagnetic theory the dielectric of sea water is not constant. After the reflection from ocean surfaces, the amplitude and phase of radio wave can be both changed.
电磁理论上，海水是非均匀的导电媒质，经海面反射后的电波其幅度和相位均会发生变化。
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