对于倾斜界面，转换波的叠加非常复杂。
The stack of converted waves from slant interface is terribly complicated.
一般的，声音表现为多个正弦波的叠加。
索末菲关于波的展开理论证明，球面波可以展开为平面简谐波的叠加。
Sommerfeld's wave expansion theory demonstrates that a spherical wave can be expanded as the superposition of plane simple harmonic waves.
对信号进行分析时通常采用传统的傅立叶变换方法，傅立叶变换是时域和频域相互转换的数学工具，从物理意义上讲其实质是将信号分解成许多不同频率的正弦波的叠加。
It is normal to use the FFT method to analyze signals. This method is one kind of mathematical method that changes the time domain signals to frequency domain signal.
文中证明了，自返平面列阵具有补偿畸变的能力，不是由于产生位相共轭反射波，而是由于自返光线的叠加和自返元件的特性。
It is shown that the compensation for distortion does not result from the production of the phase conjugate reflected waves, but from the interaction of retro-reflective waves.
通过开关角预置方法，叠加出了谐波含量低的稳压正弦波输出。
Using the method of firing Angle prediction, steady sinusoidal output voltage with low harmonic components can be generated.
并从能量叠加平衡方程，近似定量估计出大洋中长历时涌浪有效波高与局地平均风速的关系。
The relationship between local mean wind speeds and swell significant wave heights for long period has quantitatively estimated from the superposition equation of energy.
在某些情况下，这些波至的残余会叠加在一起给出近于水平的同相轴。
In some cases residuals from these arrivals will stack up to give nearly horizontal alignments.
将这一结果应用于P-SV转换波的速度分析和叠加处理中。
The result is applied to analysis of velocity and stacking of the P-SV converted-wave.
在相干声场中，很难将各个声源产生的声压分离开来，所以常规波叠加法不能用于相干声场的全息重建与预测。
The routine wave superposition approach cannot be used in reconstruction and prediction of a coherent acoustic field, because it is impossible to separate the pressure generated by individual sources.
提出了基于波叠加的噪声源识别和定位方法。
The method of noise source identification and location based on Wave Superposition Method(WSM) is proposed.
讨论了弹性波多普勒效应的叠加性质，并指出相对论的时间膨胀和长度收缩对弹性波多普勒效应的影响。
The superposition property of elastic wave's Doppler effect and the influence of relativistic time dilation and length contraction on elastic wave's Doppler effect are also discussed.
克希霍夫偏移中，反传播的处理就是把特定点的波场克希霍夫积分表达式作为从邻近点在邻近时间传播来的波的(加权)叠加。
In Kirchhoff migration, this is done by using the Kirchhoff integral representation of a field at a given point as a (weighted) superposition of waves propagating from adjacent points and times.
分析了PWM双桥叠加型，交流斩波型和串联型等三种变频型交流电压调节电路，介绍了基于变频技术的调压应用。
This paper analyzes PWM double-bridge superposition regulator, AC chopping regulator and series voltage regulator, and introduces the application of AC voltage regulating based on VF technologies.
本文通过模型和实例，对水平叠加和中值叠加进行比较，结果后者压制多次波的能力优于前者。
By comparing the horizontal stack with the mean value stack through modelling, it shows obviously that the latter is much better than the former in multiple suppression.
气体中形成波的振动叠加在这种无规则热运动上。
The vibrations which constitute a wave in a gas superposed on the random thermal motion.
对线性叠加在中值系列中的平稳随机噪声，用默认软阈值小波消噪平滑中值序列中的随机噪声分量。
As for the stable stochastic noise component linearly superposed on the median series, it is smoothed by means of the default soft threshold wavelet de-noising.
周期均值叠加法将随时间变化的水文要素序列分离成若干个周期波，然后将周期波进行外延，再进行线性叠加，从而获得预报结果。
The periodic mean superposition method can predict the result through decomposing the hydrological time series into several periodic waves, extrapolating the periodic waves, and linear superposition.
在实验结果中，还观察到简单波逐渐饱和的情况以及叠加于锯齿波上的大量高频调制部分。
In experimental results, one observes clearly the gradual saturation of simple waves and high frequency modulations on the sawtooth waveform.
研究了多重化逆变器的一种控制方法，采用逆推的方法确定各单元的触发脉冲，通过多重移相叠加原理得到正弦波输出。
A new control method of multiunit inverter is described, which determines the triggering pulse for each unit to obtain the sine wave output through multiple-phase shifting superimposition principle.
石油地震勘探记录中的瑞雷面波是一种干扰波，在反褶积和叠加前必需首先将面波从炮记录中分离出来，以提高叠加剖面的信噪比。
In petroleum seismic exploration records, Rayleigh waves belong in disturbing waves which should be removed from the records before deconvolution and stacking so as to raise signal-to-noise ratio.
要实现倾斜界面转换波的共转换点道集抽取和转换波叠加，必须确定转换点位置。
Conversion points must be located in order to make common conversion point gathering and stacking of converted waves from the slant interface.
本文应用线性波理论，通过波浪叠加法，探讨了海洋平台油气生产立管系统的动力性质。
In this paper, linear wave theory and wave superposition method are used to study dynamic behavior of oil or gas production risers on the offshore platform.
总结了波叠加的方法，指出了基准坐标系的重要性与有关量的求解方法。
The superimposing method of waves is given. The significance reference coordinate system and the solving process for some quantities are indicated.
通过在平面波谱域中比较复射线束叠加场和标准解的方法，导出了球面波和柱面波的复射线束展开系数公式。
In this article, we derive complex expansion formula of spherical and cylindrical waves by comparing the stacking field of complex ray and the close-form solution in the plane spectral domain.
该结构利用积分面积相等的原则确定开关角，通过串级叠加的方法得到标准正弦波输出。
In the structure, the (equal) integration area method was used to determine the control switch Angle, and the sinusoidal voltage wave was obtained by means of the concatenate superposition.
本文提出的基于起伏地表的叠加速度分析方法，应用双平方根方程计算反射波的旅行时间，可适用于地形起伏剧烈地区。
The method of stack velocity analysis based on relief surface presented in the paper uses double-square-root equation to compute the travel time of reflections, which is suitable to use in the area w.
在基准面重建时，利用CRS运动学波场参数可将CRS叠加剖面校正到一选定的水平面上。
The CRS-stacked zero-offset section can be corrected (redatumed) to a given planar level by kinematic wave field attributes.
此理论将声场表示成各种表面弹性波-环绕波的再辐射的叠加，从波动的角度揭示声-振耦合机理。
The theory expresses the sound fields by a superposition of various surface elastic waves-circumferential waves and reveal the vibro-acoustic coupling mechanism in viewpoint of wave.
在高能量雷射的激发之下，放射出的兆赫波显示出与方位角有关的分量叠加于与方位角无关的分量上。
At high photoexcitation, emitted THz wave shows the obvious azimuthal Angle dependence superimposed with a strong angle-independent component.
应用推荐