| 岩石爆破震动信号分析的EEMD滤波方法研究 |
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| 引用本文： | 孙新建,李成业. 岩石爆破震动信号分析的EEMD滤波方法研究[J]. 水利水电技术, 2013, 44(1): 101-104,112 |
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| 作者姓名： | 孙新建 李成业 |
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| 作者单位： | （天津大学水利工程仿真与安全国家重点实验室，天津300072） |
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| 摘 要： | 以拉西瓦水电站坝肩岩石开挖爆破震动监测信号为分析对象，通过EEMD方法对岩石爆破震动信号进行分解，并对每个IMF分量与原信号的相关性进行分析，去除噪声分量，使去噪后的信号更能真实地体现岩石爆破震动特征。对EEMD与EMD两种方法的去噪效果进行对比分析，得出EEMD去噪方法更具优越性。
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| 关 键 词： | 岩石爆破 震动信号 去噪 EEMD |
| 收稿时间： | 2012-05-21 |
Study on EEMD filtering method for analysis on rock blasting vibration signal |
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| SUN Xinjian , LI Chengye. Study on EEMD filtering method for analysis on rock blasting vibration signal[J]. Water Resources and Hydropower Engineering, 2013, 44(1): 101-104,112 |
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| Authors: | SUN Xinjian LI Chengye |
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| Affiliation: | （State Key Laboratory of Hydraulic Engineering Simulation and Safety，Tianjin University，Tianjin300072，China） |
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| Abstract: | Taking the monitoring signal of blasting vibration from the excavation of the right dam abutment of Laxiwa Hydropower Station as the objective to be analyzed，the rock blasting vibration signal is decomposed through EEMD（Ensemble Empirical Mode Decomposition） method and the correlation between IMF component and primitive signal is analyzed，so as to remove the noise component and make the signal embody the characteristics of rock blasting vibration more truly.The comparative analysis of de-noising effect made between EEMD and EMD（Empirical Mode Decomposition） methods demonstrates that EEMD possesses moresuperiority over EMD. |
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| Keywords: | rock blasting vibration signal de-noising EMMD |
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