velocity correction

This paper presents an approach that derives LVZ velocity and static correction values from the arrival time of first break by using tomography technology.

理论模型试验结果表明利用层析成像技术可由初至波的到达时反演表层低速带速度并求得静校正量。

What is more, deletion fitting method is not influenced by slight error of NMO correction velocity. This method can bring a fitted high-resolution P-wave section even though hyperbolae are not flattened thoroughly ( it is not sensitive to this.)

剔除拟合法的另一个优越性还在于它不受动校正速度的微小误差的影响，即使双曲线没有拉平，剔除拟合法对此也不敏感，照样能拟合出分辨率较高的P波剖面来。

A position and velocity correction are introduced to avoid cumulate errors.

为了避免积分累积误差,引入违约修正来校正位移和速度.

Design of polarity detector for terminal velocity correction and attitude control system

末修姿控系统极性检测仪设计

Using the algorithm of corning for attitude updating and sculling for velocity updating and the method of dynamic base zero correction improves precision and stability of the IMU which may be applied in civil and military zones since its advantages of small volume, low cost and good reliability.

用圆锥和划船补偿算法以及动态校准零位方法，来提高整个装置的精度和稳定性。该装置体积小、成本低、可靠性高，可广泛应用于民用和军事领域。

A Simplified Method of Radio Wave Refraction Correction for Velocity Measurement Data Processing of USB System

USB系统测速数据电波折射简化修正方法

Effect of Static Correction on Stack Velocity in Seismic Data Processing

地震数据处理中静校正对动校正速度的影响

In order to settle two problems of pseudo static correction value and invalid velocity analysis in conventional automatic static correction in processing the converted-wave data whose signal-noise ratio is low, we divide the processing sequence into two parts.

针对低信噪比转换波资料处理中常规自动静校正产生假静校正量和速度分析失效的两个难题，我们将处理流程分成两条数据流。

Its key techniques include datum correction through upward and downward continuations of wave field, velocity model modification of imaging points based on common imaging gather in depth domain, and migration anti-alias filter through interpolation of migration data before and after application of imaging condition equation.

此方法包括波场向上和向下延拓进行基准面校正、基于深度域共成像道集的成像点速度模型修正技术和应用成像条件前后作偏移数据内插的偏移反假频技术等核心技术。