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| 地震前兆多尺度综合信息函数及其初步应用 | |
| 引用本文： | 武安绪,张永仙,张晓东,平建军,黎明晓.地震前兆多尺度综合信息函数及其初步应用[J].东北地震研究,2007,23(3):1-9. |
| 作者姓名： | 武安绪 张永仙 张晓东 平建军 黎明晓 |
| 作者单位： | 1. 北京地震局,北京,100080 2. 中国地震台网中心,北京,100045 3. 河北省地震局,河北,石家庄,050021 |
| 基金项目： | 国家科技攻关计划 , 国家科技攻关计划 , 地震科学联合基金 |
| 摘 要： | 本文基于经验模态分解技术,构造多尺度地震前兆异常提取的综合信息函数,获得多尺度信息量。首先介绍了该方法的技术思路,然后通过对前兆时间序列进行经验模态分解,在各阶IMF和重构时序基础上计算其信息量,最后通过震例分析表明,该方法是有效的,思路是可行的,处理结果也是有意义的。 |
| 关 键 词： | 经验模态分解 固有模态函数 多尺度综合信息函数 震例分析 |
| 文章编号： | 1004-2865(2007)03-01-09 |
| 修稿时间： | 2007年7月1日 |
MULTI-SCALE SYNTHETICAL INFORMATION FUNCTION OF EARTHQUAKE PRECURSORY AND ITS PRIMARY APPLICATION |
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| WU An-xu,ZHANG Yong-xian,ZHANG Xiao-dong,PING Jian-jun,LI Ming-xiao.MULTI-SCALE SYNTHETICAL INFORMATION FUNCTION OF EARTHQUAKE PRECURSORY AND ITS PRIMARY APPLICATION[J].Seismological Research of Northeast China,2007,23(3):1-9. | |
| Authors: | WU An-xu ZHANG Yong-xian ZHANG Xiao-dong PING Jian-jun LI Ming-xiao |
| Institution: | WU An-xu, ZHANG Yong-xian, ZHANG Xiao-dong, PING Jian-jun, LI Ming-xiao (1.Earthquake Administration of Beijing Municipality, Beijing 100080, China; 2.China Earthquake Networks Center, Beijing 100045, China; 3.Earthquake Administration of Hebei Province, Hebei Shijiazhuang 050021, China) |
| Abstract: | The multi-scale synthetical information function of earthquake precursory is constructed based on the empirical mode decomposition and multi-scale information magnitude is obtained in this paper. Firstly, the technique reason about the method is introduced. Secondly, the precursory time series are decomposed by using of EMD, and the multi-scale information magnitude are calculated based on the IMF functions and the reconstructing time series. Lastly, earthquake examples are analysed. By contrasting and analyzing, we think that the method is effective, the thoughtway is feasible and the result is significative. |
| Keywords: | empirical mode decomposition intrinsic mode functions multi-scale synthetical information functions earthquake example analysis |
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