| 基于EMD小波阈值滤波的地磁数据去噪分析 |
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| 引用本文： | 张敏,王喜珍,滕云田,胡星星,吴琼.基于EMD小波阈值滤波的地磁数据去噪分析[J].地震地磁观测与研究,2012,33(3):171-175. |
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| 作者姓名： | 张敏 王喜珍 滕云田 胡星星 吴琼 |
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| 作者单位： | 中国北京100081 中国地震局地球物理研究所 |
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| 基金项目： | 于午工程数据分析与二期预研究（DQJB11B05） |
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| 摘 要： | 采用小波阈值滤波、经验模态分解滤波和基于经验模态分解的小波阈值滤波3种方法,对磁通门磁力仪观测数据进行去噪,有效去除或抑制郫县地震台地磁数据的地电干扰.
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| 关 键 词： | 地电干扰 EMD 小波阈值滤波 去噪 |
Analysis of wavelet threshold filtering bases on empirical mode decomposition to denoise the geomagnetic data |
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| Zhang Min
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Wang Xizhen
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Teng Yuntian
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Hu Xingxing
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Wu Qiong.Analysis of wavelet threshold filtering bases on empirical mode decomposition to denoise the geomagnetic data[J].Seismological and Geomagnetic Observation and Research,2012,33(3):171-175. |
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| Authors: | Zhang Min Wang Xizhen Teng Yuntian Hu Xingxing Wu Qiong |
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| Institution: | (Insititute of Geophysics, China Earthquake Administration, Beijing 100081, China) |
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| Abstract: | Using the three methods, wavelet threshold filtering and empirical mode decomposition filtering and wavelet threshold filtering based on empirical mode decomposition, to restrain the noise of fluxgate magnetometer, efficiently remove the geoelectric noise of geomagnetic data of Pixian geomagnetic observatory. |
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| Keywords: | geoelectric noise empirical mode decomposition wavelet threshold filtering noise suppression |
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