摘要
为了提高对地震事件的实时检测效果,对四种特征函数的响应特性进行对比分析,并用有限地震事件波形加以检验;同时还引入了加权系数对STA/LTA方法进行了改进,增强了对低信噪比地震信号的检测能力,增大了对地震信号和瞬时干扰信号检测的区分度。仿真结果表明该方法实用有效,具有较好地震事件检测效果。
In order to improve real-time detection of the effects of seismic events,the response of four kinds of characteristic function are analyzed,which are tested by limited waveform of seismic events.Weighting factor is used to improve the STA/LTA method,so it enhances the detection capability for Low SNR seismic signal,and enhances the differentiation capability for seismic signal and transient interference signals.The simulation result shows that this method is effectively practical and has a better detection effect for seismic event.
出处
《国外电子测量技术》
2011年第7期17-19,23,27,共5页
Foreign Electronic Measurement Technology
关键词
地震事件检测
加权系数
特征函数
seismic event detection
weighting factor
characteristic function
