Meanwhile instantaneous information on conventional stack power can be involved in measuring function simultaneously as calculation of velocity spectrum can be conducted sample by sample .

同时，由于 速度 谱的计算可以逐个样点进行，因此，度量函数中可同时包含常规叠加能量的瞬时信息。

The results show that the S / N ratio of shot recorders is increased the quality of velocity spectrum is improved and the effect of stacked section is obvious better .

实际地震资料处理结果表明，单炮记录信噪比明显提高， 速度 谱质量得到改善，叠加剖面效果明显。

Calculation of refraction velocity spectrum by τ - p transformation

利用τ-P变换计算折射波 速度 谱

This paper introduces the procedure of calculating interval velocity and sandstone percent by use of velocity spectrum .

本文介绍了利用 速度 谱计算层速度和求取砂岩含量的基本原理和方法。这种方法是通过解释地震剖面和速度 谱，读取某层段顶底的迭 加速度 和 地震 波通过的时间。

Successive velocity spectrum and coloured velocity section

连续 速度 谱和彩色速度剖面

OBJECTIVE : To emphasize the importance of correctly using angle correction to measure Doppler flow velocity in peripheral vessels Doppler flow velocity spectrum of normal subject common carotid artery ( CCA ) was measured under different angles analysing influence of different angles on measured flow velocity .

目的：为了强调正确使用多普勒角度校正功能在外周血管血流速度测量的重要性，我们测量不同角度下正常人颈总动脉血流 速度 频谱，分析了不同角度对多普勒血流测量影响。

According to the characteristic of wind field on bridge main deck WAWS is utilized to simulate the fluctuating wind velocity time history . By use of the explicit decomposition of the wind velocity spectrum density matrix and the FFT technique the efficiency of simulation is improved greatly .

根据桥梁主梁处风场特点，利用谐波合成法模拟了主梁处的脉动风速时程，通过对脉动 风速 谱密度矩阵的显式分解和FFT技术的引入，极大的提高了模拟效率。

It was found that energy distribution of wind speeds spectra used in high-frequency domain affect the buffeting effects the buffeting response value is reduced with the increase of turbulence integral scale when the horizontal and vertical wind velocity spectrum with spectra Von Karman spectrum are used .

结果发现，常用风速谱的在高频域的能量分布直接影响抖振的响应，当水平向风 速谱和竖向 风速 谱采用VonKarman谱时，抖振响应值随着湍流积分尺度的增大而减小。

The effectiveness of complex - trace correlation velocity spectrum is illustrated by examples .

文中用具体实例说明复数道相关 速度 谱的效果。

Much discussion has been made on how to obtain average velocities from velocity spectrum .

文中特别对如何利用 速度 谱资料求取平均速度的问题作了较为详尽的讨论。

The characteristic analysis of stack velocity spectrum in seismic interpretation

地震资料解释中的 速度 谱特征分析

A method for deriving the smoothed ground surface from CMP datum of static correction is given to form a common datum for velocity spectrum time-depth conversion and depth migration in depth domain .

本文还给出了根据（静校正的）CMP基准面计算地表圆滑面的方法，统一了深度域中 速度 谱、时深转换和深度偏移的基准面。

On the basis of former seismic and geology data in that area this paper beginning from the velocity research discusses the establishment of fine varied velocity field by studying a lot of seismic velocity spectrum data with smooth and average method .

本文根据该区以往的地震、地质资料，从地震速度研究着手，通过对大量地震 速度 谱分析，用平滑平均速度的方法建立了精细的三维变速场。

So using seismic section 's velocity spectrum to ensure the horizontal change of velocity is of important real significance .

因此，利用地震剖面上的 速度 谱资料来确定速度的纵、横向变化，具有重要的现实意义。

Using instantaneous phases correlation characteristic of seismic signal highresolution velocity analysis by phase correlation statistics calculates stack velocity spectrum .

相位相关统计高分辨率速度分析是利用地震信号瞬时相位的相关特性，计算叠加 速度 谱。

By analyzing the peak value of their velocity record and velocity spectrum the comparative conditions of these two kinds of waves and the damage intensity of earthquake are determined .

通过对其速度波峰值和 速度 反应 谱的分析，确定了两类波的相比条件和地震破坏烈度的标定。

The method may be an effective way to analyse the velocity spectrum image of PDU in clinic .

可以成为今后临床医学超声 速度 频谱图像分析的一种有效的手段。

In order to describe the inner configuration accurately a detailed interpretation has been made of its velocity spectrum setting up average velocity fields for major strata .

为了准确刻划断块内部形态，进行了 速度 谱精细解释，建立了主要目的层平均速度场。

The reasons why quasi velocity spectrum is not appropriate for calculating blasting vibration are demonstrated .

并论证了爆破地震动响应计算不宜采用拟 速度 谱的原因。

A non-uniform inversion model suitable to non-uniform density variation of formation in the Jiyuan basin can be designed using seismic velocity spectrum and known density data . Density interface inversion is conducted under the restraint of known seismic reflector and drilling data .

针对济源盆地地层密度非均匀变化的特点，可以依据地震 速度 谱和已知的密度资料，设计非均质反演模型，在已知的地震反射界面和钻井资料的约束条件下，进行密度界面反演。

Velocity spectrum interpretation and interval velocity curve smoothing ;

速度 谱解释和层速度平滑；

Such an effect decreases with the increase of structural damping and the ratio of structural modal frequency to predominant frequency in the wind velocity spectrum .

这一影响随着结构阻尼、结构频率与 风 谱卓越频率的比值的增加而减弱。

A method of gravity inversion for calculating basement of sedimentary basin using the data of seismic velocity spectrum gravity anomalies and water depth was built up .

建立了一种利用地震波 速度 谱、重力和水深资料反演沉积盆地基底的方法。

The random micro-vibration response analysis method for viscoelastic sandwich plate is developed based on the frequency-response function response power spectral density and root-mean-square velocity spectrum of the theory of random vibration .

基于随机振动理论关于多自由度系统的 频率响应函数、功率谱密度函数和均方根 速度获得了夹层板的均方根 速度响应表达式，从而发展该粘弹性夹层板的随机微振动响应分析方法。

Covariance velocity spectrum is based on the fact that the sampled data can be arranged in eigen structure of covariance matrix .

协方差 速度 谱是基于采样数据可以排列成协方差矩阵的特征结构而设计的。

The characteristic analysis of stack velocity spectrum applied to seismic interpretation especially to predicting oil and gas deposits is introduced in this paper .

本文主要介绍了 速度 谱特征分析在地震资料解释中的应用，尤其是在含油气储层预测方面的应用。

Then using a recursion formula for the seismic velocity spectrum and interval velocity the velocity values having the same time domain with the oil / gas geologic body are picked up and calculated .

再利用地震 速度 谱和层速度递推公式，分别拾取和计算与油气地质体同一时域的速度值。

This system based on the experience and knowledge of manually extracting data realizes the automation of velocity spectrum data extration .

本系统以人工处理资料的经验和知识为基础，实现 地震 速度 谱资料处理的自动化。

In the paper we put forward four new methods for making migration velocity spectra by using generalized Radon transform namely stack migration velocity spectrum and semblance migration velocity spectrum both of which can be computed in either time domain or depth domain .

本文提出了四种新的基于广义Radon变换的偏移速度谱计算方法，即具有时间域和深度域表现形式的叠加偏移 速度 谱和相似度偏移速度谱。