基于FK滤波的TSP负反射提取方法研究

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，该系统同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。

Study on Using FK Filtering to Extract the Seismic Negative Reflection

Tunnel Seismic Predication system is now the most commonly used software which is the TSP processing system developed by Amberg. This system solidified the seismic data processing and hides the processing interpretation steps, which has brought a lot of inconvenience in the process of seismic data. Therefore, this paper uses FK filtering method to deal with the shortage of TSP to extract the seismic negative reflection. As ef- fective negative reflection information and interference wave of TSP are different in the apparent velocity, in this paper, the FK filtering is used to extract the seismic negative reflection, and also the theoretical models and practical data are tested and analyzed. The result shows that the FK filtering method is effective.