基于Bubble小波的多尺度断层检测

Multiscales fault detection based on Bubble wavelet

1. 中国矿业大学,徐州221008;2. 西南石油学院,南充637001;3. 川南矿区研究所,泸州646001

China University of Mining and Technology, Xuzhou 221008

本文基于Bubble函数构造小波基,用Mallat塔式快速算法对地震信号进行二维多分辨分析,并利用局部极值理论提取、检测反射同相轴及断层。理论和计算结果表明,该方法能够检测出不同尺度下的地震信号突变特征,且具有一定的抑制噪声能力。

This paper construct wavelets based on Bubble function and decompose seismic signals by using Mallat algorithm. According to the theory of position extreme value, events and faults are detected. Theory and calculation results show that the method can detect the information of sudden change in different scale seismic signals and reduce noise effectively.