基于相匹配滤波的面波自动检测算法的实现  

Realization of Surface Wave Automatic Detection Algorithm Based on Phase-matched Filter

作　　者：王娟[1,2] 邱宏茂[2] 李健[2] 张波[2] 许进[2] 王晓明[1,2] 王伟[2] 

机构地区：[1]中国地震局地球物理研究所,北京100081 [2]禁核试北京国家数据中心和北京放射性核素实验室,北京100085

出　　处：《核电子学与探测技术》2015年第5期426-429,共4页Nuclear Electronics & Detection Technology

基　　金：国防科技预先研究项目(513310203)

摘　　要：准确和可靠的面波测量对于监控全面禁止核试验条约(CTBT)的实施是十分重要的,相匹配滤波可有效检测和测量小当量核爆事件的面波信号,提高天然地震与核爆的识别能力。本文首先介绍了相匹配滤波的理论基础,然后设计了面波自动检测流程及方法,并将其应用到禁核试国家数据中心地震数据处理流水线中。测试结果表明:改进后的面波检测和测量程序提高了面波检测的精度,降低了小震级事件的检测阈值。Accurate and reliable surface wave measurement for monitoring and verifying the Comprehensive Nuclear Test Ban Treaty is very important. Phase - matched filter can improve capabilities to discriminate nuclear explosions and earthquakes by efficiently detecting and measuring surface - wave of small nuclear explosions. In this paper, the theoretical basis of phase - matched filter is introduced and the surface wave automatic detection process and method is designed, and then the method is implemented in CTBT Beijing national data center for seismic data processing pipeline. The results show that updated surface wave detection and measurement program improved the accuracy of the surface wave detection and measurement, and lowering the detection threshold of small magnitude seismic events.

关 键 词：相匹配滤波 地震核查 面波检测 

分 类 号：TP311.3[自动化与计算机技术—计算机软件与理论]