地震波速与深度之间的不确定性及消除

从单一的水平界面、均匀地层地质模型出发、分析了地震波传播速度与深度之间的不确定性关系，指出速度的变化取决于时间拾取的相对误差和深度与炮检距的比值，二者决定了速度与深度之间的不确定性。在此基础上，提出可用中值滤波法来消除这种不确定性，从而提高速度分析的精度。

Analysis and Elimination of the Ambiguity Between Seismic Velocity and Depth

By means of a geological model of homogeneous formation with single horizontal contact,an ambiguous relation between velocity and depth of seismic travel is discussed Variation in velocity depends on the relative error of time picking and the ratio of depth vs offset which decides the ambiguity of velocity and depth On the basis above, it is pointed out that the ambiguity can be eliminated by utilizing medium filtering method to improve the exactness of velocity analysis