| 小震的综合识别研究ht |
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| 引用本文： | 沈萍,郑治真,刘希强,滕云田,杨选辉.小震的综合识别研究ht[J].地震学报,2002,24(2):169-175. |
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| 作者姓名： | 沈萍 郑治真 刘希强 滕云田 杨选辉 |
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| 作者单位： | 1)中国北京100081中国地震局地球物理研究所
2)中国北京100045中国地震局地震数据信息中心
3)中国济南250014山东省地震局 |
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| 摘 要： | 采用现代数字信号处理方法，对中国地震局地球物理研究所研制的数字地震仪在山西省大同地区1999年11月记录的三分向数字地震资料进行分析，研究了数字地震记录信号的自动识别．结果表明，通过采用长短时信号平均值比、谱分析和小波分析法提取特征参量进行综合识别的方法，可对地震信号进行人机交互式自动识别，且对多数ML＞2.0地震识别较好．
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| 关 键 词： | 数字地震记录 谱分析 小波 综合识别 |
| 文章编号： | 0253-3782(2002)02-0169-07 |
| 修稿时间： | 2000年12月28 |
STUDY ON THE METHOD FOR COMPREHENSIVE DISCRIMINATION OF SMALL EARTHQUAKES |
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| Shen Ping Zheng Zhizhen Liu Xiqiang Teng Yuntian Yang Xuanhui Institute of Geophysics,China Seismological Bureau,Beijing ,China Center for Seismic Data and Information,China Seismological Bureau,Beiji.STUDY ON THE METHOD FOR COMPREHENSIVE DISCRIMINATION OF SMALL EARTHQUAKES[J].Acta Seismologica Sinica,2002,24(2):169-175. |
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| Authors: | Shen Ping Zheng Zhizhen Liu Xiqiang Teng Yuntian Yang Xuanhui Institute of Geophysics China Seismological Bureau Beijing China Center for Seismic Data and Information China Seismological Bureau Beiji |
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| Institution: | Shen Ping 1) Zheng Zhizhen 2) Liu Xiqiang 3) Teng Yuntian 1) Yang Xuanhui 2) 1) Institute of Geophysics,China Seismological Bureau,Beijing 100081,China 2) Center for Seismic Data and Information,China Seismological Bureau,Beiji |
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| Abstract: | In the paper, we apply the theory of modern digital signal processing to analysis 3-component digital seismic data recorded in Datong area of Shanxi Province by digital seismographs developed by the Institute of Geophysics, CSB in November 1999 and study the auto-discrimination of the recorded digital seismic signals. The results show that the method for comprehensive discrimination in connection with ratios between average values of long-time and shorttime signals, spectral analysis, and wavelet analysis can be used to auto-discrimination of seismic signals through alternate man-computer processing. Many M L>2.0 earthquakes were better discriminated. |
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| Keywords: | digital seismic record spectral analysis wavelet comprehensive discrimination |
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