sounding velocity

Three dimensional finite difference inversion method is used to obtain 3 D velocity structure of the upper crust in North China by means of Pg wave data from 30 deep seismic sounding ( DSS) profiles in the studied area.

通过对华北地区30条深地震测深剖面的Pg波三维有限差分速度层析成像反演，获得了该地区上部地壳的三维速度结构。

In process of data processing, we used the techniques, such as filtering, edition surgical blanking, prediction deconvolution, fitting static correlation of first arrival time, and velocity analysis, and obtained a high-qualitative shallow seismic reflection sounding profile.

数据处理过程中采用了滤波、编辑切除、预测反褶积、初至时拟合静校正和速度分析等技术，得到了高质量的浅层地震反射探测剖面。

Research on the Influence of Surface Sound Velocity in Multibeam Echo Sounding

表层声速对多波束测深影响的研究

Based on data collected by deep seismic sounding carried out in 1999, a three-dimensional P wave velocity structure is determined with tomographic inversion.

根据1999年腾冲火山区人工地震探测资料，用层析成像方法反演了腾冲火山区上地壳三维P波速度结构。

Relationship between Sonic Wave Velocity and Hest-conductivity Coefficient in Coal and Rock Acoustic Sounding In Explosive Rocks

煤层岩体中声波速度与导热系数的关系