反射波自动检测的一种方法

A New Method for Auto-detection of Reflection Waves

本文依据反射波理论双曲线方程,提出了一种通过判别检测到的均方根速度的方法来鉴别全程多次波,并自动检测一次反射波。由于多次波包含了一次反射波的速度信息,因此,凡提取到相同均方根速度时,其时间滞后的反射波必是多次反射波。该方法不需要事先提供任何速度资料,且能提供工区的均方根速度的分布情况,文中采用理论模型试算,初步验证了这种检测方法的可行性。

Based on the theoretical reflection hyperbolic equation, a new method is proposed in this paper for auto-determination of the primary reflection and auto-differentiation of the multiple reflection by distinguishing the detected root-mean-square velocity. The information about the velocity of the primary reflection is included in that of the multiple reflection. The time-lag reflections which have the same root-mean-square velocity must be multiple reflections. With this method no preliminary velocity data are necessary for determining the root-mean-square velocity. Two theoretical models are given to test this method and verify its feasibility.