| Hiibert-Huang transform and wavelet analysis of time history signal |
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| 作者姓名： | 石春香 罗奇峰 |
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| 作者单位： | ResearchInstituteofStructuralEngineeringandDisasterReduction,TongjiUniversity,Shanghai200092,China |
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| 基金项目： | State Natural Science Foundation of China (50178055). |
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| 摘 要： | The brief theories of wavelet analysis and Hilbert-Huang transform (HHT) are introduced firstly in the present paper. Then several signal data were analyzed by using wavelet and HHT methods, respectively. The comparison shows that HHT is not only an effective method for analyzing non-stationary data, but also is a useful tool for examining detailed characters of time history signal.
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| 关 键 词： | Hiibert-Huang变换 小波分析 傅里叶变换 地震 数据处理 本征模式函数 光谱分析 |
| 收稿时间： | 30 May 2002 |
| 修稿时间： | 9 December 2002 |
Hilbert-huang transform and wavelet analysis of time history signal |
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| Shi Chun-xiang,and Luo Qi-feng.Hiibert-Huang transform and wavelet analysis of time history signal[J].Acta Seismologica Sinica(English Edition),2003,16(4):422-429. |
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| Authors: | Shi Chun-xiang and Luo Qi-feng |
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| Institution: | Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China |
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| Abstract: | The brief theories of wavelet analysis and Hilbert-Huang transform (HHT) are introduced firstly in the present paper. Then several signal data were analyzed by using wavelet and HHT methods, respectively. The comparison shows that HHT is not only an effective method for analyzing non-stationary data, but also is a useful tool for examining detailed characters of time history signal. |
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| Keywords: | Hilbert-Huang transform wavelet analysis mother wavelet intrinsic mode functions spectral analysis |
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