refracted wave

Application of reversed refracted wave method in detecting the thickness of remained coal seam

相遇折射波法在剩余煤厚探测中的应用

Application of SVD filtering in the processing of decaying direct wave and refracted wave

SVD滤波法在直达波和折射波衰减处理中的应用

Application of Preliminary Refracted Wave Static Correction Technique

初至折射波静校正技术在复杂探区地震数据处理中的应用

The simulated result shows that when the source is at the surface , it will produce a multiple refracted wave ;

数值模拟结果表明，当震源位于地表时，会产生多次折射波；

From Hales method , reversed refracted wave method shows accuracy and efficiency in detecting the thickness of remained coal seam .

以哈尔斯法为例，将相遇折射波法用于剩余煤厚探测中，具有精确、高效、快速的特点。

τ - p transform can relate reflected wave to refracted wave , and makes useful the waves ( e.g. refracted wave ) which were treated as noises in processing .

这样τ&p变换后就把反射波、折射波有机地联系起来，原来作为干扰处理的噪音（折射波等）就变为有用的信息。

The accurate formula of time-distance curve is used to develop theoretical common shotpoint gather , which includes direct wave , shallow refracted wave , reflected waves and refracted waves in layered medium .

文中按照精确的时距曲线公式建立了具有多个反射层的共炮点理论记录，包括直达波、浅层折射波，各层的反射波及折射波。

Therefore there are reflected wave and refracted wave which propagate in the direction other than , that of waves travelling along the directions according to laws of reflection and refraction in linear acoustics .

因之，除遵循线性声学反射和折射定律的二级近似反射波和折射波外，在其他方向上也有二级近似反射波和折射波。

It is found that the amplitude of second order reflected wave and refracted wave doer not keep constant at the wave front , as these waves obey laws of reflection and refraction in linear acoustics .

在斜投射时，一般而言，遵循线性声学反射和折射定律的二级近似反射波和折射波的波前上，波的幅度不再保持恒等。

The Refraction Statics is on the basis of refracted wave theory , it is very difficulty to find one stably refracting layer in complex areas . So the refraction statics method is unfit these areas .

基于折射波技术理论的静校正方法是建立在水平折射面的假设基础之上的，在复杂山区很难找到一个稳定的统一的折射层，故基于折射波理论的静校正方法在此类地区不再适用。

And ( 3 ) When near surface geological structure is high and precipitous , and there is no shallower refracting surface ( it is often in mountainous region ) . The first arrival is not refracted wave .

在近地表地质结构为高陡地层并且不存在浅层折射界面（在山地常出现这种情况）时，初至波不是折射波，建议山地资料处理中慎用折射波静校正。

The Doppler frequency shift of the lateral wave is much larger than the one of the refracted wave , and is consistent with the signal in the air . ( 4 ) Two experiments are performed to study the acoustic field in water for the airborne source .

对于运动声源，水下侧面波的最大多普勒频移，大于水下折射声波，与空气声波一致。（4）对空气声波透射入水现象进行实验研究。

Three seismic waves illustrated in this paper refer to reflected compressional wave , refracted compressional wave and Rayleigh wave .

3种波指的是反射纵波，折射纵波，瑞雷面波。

The spacial distribution area of reflected points of incident wave in fractures is situated between two ellipses that are determined by critical refracted P wave and critical refracted S wave .

讨论了入射纵波在裂缝上的反射点构成的空间分布，它们分布在临界折射纵波时间和临界折射横波时间两个椭圆之间；

Some main characteristics of refracted compressional wave , refracted shear wave and Stoneley wave in full wave train observed in this experiment coincide with the theoretical ones , while the real ratio of P-wave amplitude to S-wave amplitude and their geometric divergence do not tally with the theoretical ones .

实验观测到全波列中的折射纵波、折射横波、斯通利波的基本特征与理论分析一致，但实测的折射纵横波幅度比及它们的几何衰减与理论分析不符。

Emitting longitudinal critically refracted ( Lcr ) wave , this technology is called settled-distance refractometry technique that is practicability to detect the interior stress produced in different depth with different frequency ultrasonic transducer .

这样采用临界折射纵波（LCR波），设计出固定距离折射法，应用不同频率的探头，对于测量构件平面以下的不同深度的内部应力具有很好的实用性。