通过最佳迭加对速度函数进行连续分析,取得准确的速度资料作为动校正的依据,从而能大大改善最终的时间剖面。方法的基本原理是:对同一反射点的各道,分别以各种时差进行校正,迭加后得出振幅变化曲线,该曲线上的极大反映出反射波(或多次波)的平均逮度,据此还能计算层速度。举出两个实例借以证明方法的效果。 Continuous analysis of the velocity function through the best superposition gives accurate velocity data as the basis for dynamic correction, which can greatly improve the final time profile. The basic principle of the method is as follows: each channel of the same reflection point is calibrated with various time differences, and the amplitude curve is obtained after the superposition, and the curve on the curve greatly reflects the average of the reflected waves (or multiple waves) Degrees, according to which layer velocity can be calculated. Give two examples to prove the effect of the method.