seismic phase

SPn seismic phase analysis for a M_L5.0 earthquake in southern Taiwan Strait

台湾海峡南部一次5.0级地震的sPn震相分析

Discussion on the Necessity and Implementation Method of Three-level Three-phase Seismic Design for Building Structure

三水准三阶段建筑抗震设计必要性及方法探讨

It is tried that the instantaneous amplitude, instantaneous phase and instantaneous frequency of seismic information are used for calculating the thickness of the coal seam based on the seismic attribution of various rock formations and the developed characteristics of the coal seam in this area.

根据不同岩层的地震属性及本区煤层发育特点，尝试了利用地震瞬时振幅、瞬时相位和瞬时频率信息计算煤层厚度。

Constant phase correction method recommended here is only an approximation for solving this question because the residual phases of wavelets of real seismic section are not necessarily the constant.

本文介绍的常相位校正是解决这个问题的一种近似方法（因为实际剖面中的子波剩余相位不一定是常数）。

On the basis of lateral variation in σ values, taking seismic phase characteristics into consideration, the ultra crustal fault near Yangyuan and Zhangbei and the abyssal fault at Huai ′ an are deduced.

根据σ值的横向变化并结合震相特征，推断了阳原及张北附近的超壳断裂带和怀安的深断裂带。

Characteristics of seismic phase of lg-wave in Taiwan and Ryukyu area

台湾琉球地区Lg波的震相特征

In constant phase correction of seismic record, the phase spectrum plus a constant and the instantaneous phase plus the same constant can bring the same result.

在实现常相位校正时，在记录的相位谱上加一个常数与在记录的瞬时相位上加同一个常数，结果是相同的。

Seismic phase analysis in Telemetry Network

遥测台网的震相分析

This paper makes 3-phase Cylinder Linear Induction Motor ( Clim) worked as the Borehole Weight-drop Seismic Source in 3500m Borehole Seismic Exploration System.

文章将三相圆筒型直线感应电动机应用于3500m深井下探测用地震波发生源系统。

Discussion on the seismic phase characteristics in shadow zone in Tianshui station

天水台影区地震震相特征讨论

The viscoelasticity of a medium makes seismic wave have a constant phase delay when upper-limit frequency of the data is not high.

在资料的上限频率不高时，介质的黏滞性将导致地震波发生一个常数的相位延迟。

The constant phase sweep is made on multiple traces, and the angle corresponding to the maximum variance norm is the angle that can be used in constant phase correction of whole seismic section.

第二种是在多道记录上进行常相位扫描，用方差最大时所对应的角度作为整条剖面常相位校正的角度。

Therefore, local wave decomposition technology was introduced into the logging date extrapolation method constrained by time-phase model to gain the seismic instantaneous phase.

为此，在时间-相位模型约束的井资料外推方法中，引入局域波分解技术来求解地震瞬时相位；