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为了能对反射波进行三维空间归位,利用时间剖面直接作图,采用由等 t_0图通过空间归位做深度构造图的方法越来显得越重要。这种方法是根据等 t_0图上的某一条 t_0o线的数值以及它和上倾方向的 t_0线之间的距离△x,(或是和上、下两条 t_0线的△x 平均值)通过查量板或查表求出偏移距00′和深度 h。(如图1所示)但这样做必须有一个前提,就是在这条 t_0线附近(具体范围应是它和前后两条 t_0线之间的那一段)的反射波
In order to locate the reflected wave in three-dimensional space, it is more and more important to use the time profile to directly map and adopt the method of making the depth map from the t_0 map through the spatial homeostasis. This method is based on the t_0 figure on a t_0o line value and its tilt direction and t_0 line between the distance △ x, (and the upper and lower t_0 line △ x average) through Check the board or look-up table to find the offset 00 ’and depth h. (As shown in Figure 1) But to do so, there must be a premise that the reflected wave near this t_0 line (the specific range should be between it and the two t_0 lines before and after)