velocity spectrum

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。

By muffling volume of barrel dissipative muffler is tested in test-bed, muffling volume of A class and each time of spectrum are obtained under various velocity of airflow.

通过实验台对筒式阻性消声器的消声量进行测试，测得了不同气流速度下，筒式阻性消声器的A声级消声量和各倍频程的消声量。

The usual method for obtaining interval velocity is to derive stacking velocity from velocity spectrum, then to calculate interval velocity by Dix formula.

目前普遍采用的方生是由速度谱先求取叠加速度，然后再用Dix公式求取层速度；

In this paper, a method, which synthesizes the artificial ground motion compatible with the specified peak velocity as well as the target acceleration response spectrum, was proposed.

提出一种以绝对加速度反应谱和峰值速度为目标的合成人造地震动时程的方法。

Furthermore, the time history and spectrum of the average flow velocity through an orifice are computed, from which the nonlinear distortion of flow velocity is analyzed.

进而计算了圆孔中的声质点速度，并分析了孔中速度的畸变情况、最后给出了圆孔的非线性声阻和声抗的理论值。

The successive velocity spectrum which developed on the basis of fast correlated sign bit velocity spectrum technique can pick up velocity spectrum point by point along a seismic section.

在符号位快相关速度谱技术基础上发展起来的连续速度谱，可以沿地震剖面逐点拾取速度谱。

Principle of spectrum of sign bit correlative velocity and effect of practice

符号位相关速度谱的原理与实践效果

The reflection spectrum, time delay, and group velocity dispersion ( GVD) of the gratings are analyzed.

并对此种光栅的反射谱，时延及群速度色散进行了理论分析；

This study applied the Split-Spectrum Processing ( SSP ) technique to measure the ultrasound phase velocity and BUA.

本计画主要研究利用所发展之 SSP 技术来量测超音波经过骨头之波衰减与速度散度之情形.

At the same time, the interval velocity derived from the time_ shift_corrected spectrum τ 0 is more accurate than that derived from the traditional Dix_equation_calculated stacking.

同时，用时移动校正τ0分析谱计算层速度较以往用Dix公式由叠加速度计算层速度精度要高。