| 基于小波包变换的爆破震动信号能量分析方法 |
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| 引用本文： | 徐学勇,冯谦,雷静雅.基于小波包变换的爆破震动信号能量分析方法[J].大地测量与地球动力学,2010,30(Z2). |
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| 作者姓名： | 徐学勇 冯谦 雷静雅 |
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| 作者单位： | 中国地震局地震研究所;武汉地震工程研究院; |
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| 基金项目： | 中国地震局地震研究所所长基金 |
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| 摘 要： | 爆破震动效应测试和分析对于评估工程爆破安全和爆破效果非常重要,但对于采集到的爆破震动信号,在数据的处理和分析上还存在着诸多不足.在阐释小波变换基本原理的基础上,给出了爆破震动信号能量分析方法的理论解析,并结合应用实例,对爆破震动信号进行小波包能量分解.研究结果表明,基于小波包变换的能量分析方法可以较好地揭示信号在不同频带范围内的局部分布特征,从而为可靠地进行建(构)筑物爆破震动效应安全评估奠定理论基础.
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| 关 键 词： | 爆破震动 信号分析 小波包分解 频带 能量分析 |
ENERGY ANALYSIS METHOD BASED ON WAVELET PACKET TRANSFORMATION FOR EXPLOSION VIBRATION SIGNAL |
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| Xu Xueyong,Feng Qian,Lei Jingya.ENERGY ANALYSIS METHOD BASED ON WAVELET PACKET TRANSFORMATION FOR EXPLOSION VIBRATION SIGNAL[J].Journal of Geodesy and Geodynamics,2010,30(Z2). |
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| Authors: | Xu Xueyong Feng Qian Lei Jingya |
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| Institution: | Xu Xueyong1,2),Feng Qian1,2) and Lei Jingya1,2)(1) Institute of Seismology,China Earthquake Administration,Wuhan 4300712) Wuhan Institute of Earthquake Engineering,Wuhan 430071) |
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| Abstract: | The test and analysis of blasting vibration effects play an important part in the assessment of blasting safety and effect,but there are still many inadequacies in the data processing and analysis for the blasting vibration signals collected.On the basis of interpretation of the basic principles of wavelet transform,theoretical explanation of energy analysis method is given and the wavelet packet energy decomposition of an example of blasting vibration signal is carried out.The results show that wavelet pac... |
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| Keywords: | blasting vibration signal analysis wavelet packet decomposition frequency band energy analysis |
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