| 应用单台垂向记录进行区域地震事件实时检测和直达犘波初动自动识别 |
| |
| 引用本文： | 刘希强,周彦文,曲均浩,石玉燕,李铂.应用单台垂向记录进行区域地震事件实时检测和直达犘波初动自动识别[J].地震学报,2009,31(3):260-271. |
| |
| 作者姓名： | 刘希强 周彦文 曲均浩 石玉燕 李铂 |
| |
| 作者单位： | （中国济南250014山东省地震局） |
| |
| 摘 要： | 提出一种基于直达P波信号和其它背景噪声在能量、非高斯性、非线性和偏振特性的不同而进行区域地震事件实时检测的新方法信噪综合差异特征量方法（简写为EFGLP方法），同时对比分析了应用信号的不同统计特性来精细识别震相初至的３种有效方法，其中的TOC AIC方法是新提出的．应用山东数字地震波资料处理的结果表明:①与常规的STA/LTA地震事件触发算法相比，EFGLP方法能够有效降低地震事件的错误报警率和漏报率；②与人机交互震相识别结果相比，当信噪比比较低、震相初至比较模糊时，3种震相精细识别方法中的TOC-AIC方法识别精度最高；当信噪比比较高、震相初至比较清晰时，基于VAR-AIC 和TOC-AIC方法所测量得到的震相初至识别基本一致．
|
| 关 键 词： | 山东测震台网 直达波 事件自动检测 震相自动识别 |
Real-time detection of regional events and automatic P-phase identification from the vertical component of a single station record |
| |
| Liu Xiqiang,Zhou Yanwen,Qu Junhao,Shi Yuyan,Li Bo.Real-time detection of regional events and automatic P-phase identification from the vertical component of a single station record[J].Acta Seismologica Sinica,2009,31(3):260-271. |
| |
| Authors: | Liu Xiqiang Zhou Yanwen Qu Junhao Shi Yuyan Li Bo |
| |
| Institution: | Earthquake Administration of Shandong Province;Jinan 250014;China |
| |
| Abstract: | In this paper,we present a new method for detecting and identifying regional seismic events in real time based on recognizing the different content between direct P-wave signal and background noise in energy,non-Gaussian characteristics,non-linearity and polarization of P-wave(we called as energy filter,Gauss linearity and polarization method,abbreviated to EFGLP method).We use AR-AIC,VAR-AIC and TOC-AIC methods to identify earthquake phases.Here TOC-AIC is a new algorithm.We have found that EFGLP method ha... |
| |
| Keywords: | Seismic Network of Shandong Province direct P wave real-time detection automatic P-phase identification |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地震学报》浏览原始摘要信息 |
| 点击此处可从《地震学报》下载免费的PDF全文 |
