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| Keywords | |
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EMD |
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anomaly separation |
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gravity anomaly |
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local field |
| Authors | |
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ZHOU Wen-Na |
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ZENG Shao-Fa |
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DU Xiao-Juan |
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MA Guo-Qing |
| PubMed | |
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Article by Zhou, W. N. |
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Article by Ceng, S. F. |
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Article by Du, X. J. |
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Article by Ma, G. Q. |
Gravity anomaly separation based on empirical mode decomposition
ZHOU Wen-Na, ZENG Shao-Fa, DU Xiao-Juan, MA Guo-Qing
College of Geoexploration Science and Technology��Jilin University��Changchun 130026��China
Based on empirical mode decomposition ( EMD) method��the authors built a new gravity anomaly separation method according to the horizontal gradient characteristics of gravity anomaly�� Through experiments and contrast of different model��the anomaly separated by this method can match well with model theoretical anomaly and carry on the quantitative division of anomaly�� In measured data processing��combined this method with the analysis of average logarithm power spectrum��the separated regional anomaly can describe the regional geological characteristics effectively in the studied area�� Both of the model experiment and measured data processing indicated that the gravity anomaly separated by this method does not have distortion and false information��which is valuable for practical application��