基于模板匹配法的主动源地震检测方法研究

摘要

Based on the repeatability and low signal-noise ratio of active source events,we propose an auto detection method of active source events using template matching techniques.A continuous waveform (25 200 seconds) of CKT(SHZ) is processed by a program using template matching and correlation calculating techniques.13 air-gun earthquake events are detected and the trigger times are picked up.The results indicate a 100％ accuracy with no misdetections.The method can be used for auto data handling processes for active source or seismic arrays that produce huge amounts of waveform.%针对主动源地震波重复性高、信噪比低的特点,采用基于模板匹配法的地震自动检测方法,通过编写数据自动处理程序,对参考台实验期间的25 200 s的连续波形记录进行处理,识别出其中13次气枪激发记录波形并获取激发时刻.结果表明,此方法识别率达到100％,无误判情况发生.此方法对诸如地震台阵等需要进行海量数据处理的情况具有借鉴意义.