| 基于HHT的微震信号分析 |
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| 作者姓名： | 刘 佳 吴建星 |
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| 作者单位： | 武汉科技大学资源与环境工程学院,湖北 武汉,430081;武汉科技大学资源与环境工程学院,湖北 武汉,430081 |
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| 基金项目： | 柴达木循环经济区多金属资源循环利用关键技术研究项目(2007BAB18B07-01). |
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| 摘 要： | 利用希尔伯特-黄变换(HHT)中经验模态分解(EMD)法,对武钢金山店铁矿微震监测信号进行分解,得到满足一定条件的IMF分量,再对其进行希尔伯特变换,得到能量谱图,通过对波形和谱图的分析,实现微震震源的提取及分类。
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| 关 键 词： | 希尔伯特-黄变换 经验模态分解 微震震源 信号分析 |
| 收稿时间： | 2013/1/15 0:00:00 |
HHT-based analysis of microseismic signals |
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| Authors: | Liu Jia and Wu Jianxing |
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| Institution: | College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China;College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China |
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| Abstract: | Making use of EMD decomposition method in Hilbert-Huang transform, this paper decomposes the microseismic signals in Jinshandian Iron Mine of Wuhan Iron and Steel Corporation and obtains IMF components that meet certain conditions, which go through Hilbert conversion and yield energy spectrum. With analysis of the waveform and spectrum, it extracts and classifies microseimic sources in the very mine. |
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| Keywords: | Hilbert-Huang transform EMD decomposition microseismic source signal analysis |
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