| 基于小波多分辨率分析的地磁脉动信号提取 |
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| 引用本文： | 张平,山秀明,毛玉平. 基于小波多分辨率分析的地磁脉动信号提取[J]. 地震研究, 2007, 30(2): 179-181 |
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| 作者姓名： | 张平 山秀明 毛玉平 |
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| 作者单位： | 清华大学,电子工程系,北京,100081;云南省地震局,昆明,650224;清华大学,电子工程系,北京,100081;云南省地震局,昆明,650224 |
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| 基金项目： | 中国地震台网中心资助课题 |
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| 摘 要： | 2003年10月29日,云南通海地磁台记录到一次K=9的特大磁暴。运用本次强磁暴的数字化记录资料,探讨了用小波多分辫率分解Mallat塔式率算法在强磁暴信号水平上提取地磁脉动弱信号的方法。结果表明,该算法提取的地磁脉动信号频率成分清晰、基线平整、波型完好。
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| 关 键 词： | 小波变换 地磁弱信号 地磁脉动 通海地磁台 |
| 文章编号： | 1000-0666-（2007）02-0179-03 |
| 修稿时间： | 2006-10-25 |
Geomagnetic Pulse Signal Detection Based on Wavelet Multi-resolution Analysis |
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| ZHANG Ping,SHAN Xiu-ming,MAO Yu-ping. Geomagnetic Pulse Signal Detection Based on Wavelet Multi-resolution Analysis[J]. Journal of Seismological Research, 2007, 30(2): 179-181 |
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| Authors: | ZHANG Ping SHAN Xiu-ming MAO Yu-ping |
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| Affiliation: | 1. Department of Electric Engineering, Tsinghua University, Beijing 100081, China; 2. Earthquake Administration of Yunnan Province, Kunming 650224, China |
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| Abstract: | A strong magnetic storm with K=9 is recorded by the Tonghai magnetic station of Yunnan on Oct.29, 2003. We use the digital data of the geo magnetic storm to discuss the method of extracting weak magnetic microtremor signals via the multi-resolution tower type arithmetic of wavelet. The result shows that the extracted frequency components of the geomagnetic microtremor signals are clear, the baselines are straight and the wave patterns are complete. |
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| Keywords: | wavelet transform weak geomagnetic signal geomagnetic microtremor Tonghai geomagnetic Station |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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