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隧道地震地质超前预报系统中,现在最常用的软件是由瑞士安伯格公司研制的TSP处理系统,该系统固化了地震资料处理和解释的步骤,隐藏了处理过程信息,这个为地震资料的处理带来了很多不便。本文旨在采用FK滤波方法扩展TSP中提取负反射的方法。TSP有效信息负反射和干扰波在视速度上存在差异,本文采用FK滤波的方法提取地震负反射,并对理论模型和实际资料做了试验和分析,通过试验分析证明FK滤波方法在提取地震负反射方面有较好的效果。
The most commonly used software in tunnel seismic geological advance prediction system is the TSP processing system developed by Amberger AG in Switzerland. This system solidifies the steps of seismic data processing and interpretation and hides the processing information, which is used to process seismic data Brought a lot of inconvenience. This paper aims to extend the method of extracting negative reflections in TSP using FK filtering. TSP valid information There is a difference in apparent velocities between negative reflection and interference waves. In this paper, FK filtering is used to extract the negative reflection of the earthquake. The theoretical model and actual data are tested and analyzed. The experimental results show that the FK filtering method is effective in extracting the negative Reflections have a good effect.