| Cepstrum analysis of seismic source characteristics |
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| 作者姓名： | 魏富胜 黎明 |
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| 作者单位： | InstituteofGeophysics,ChinaSeismologicalBureau,Beijing100081,China |
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| 基金项目： | State Natural Science Foundation of China (40174011). |
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| 摘 要： | This paper introduces the concept of cepstrum.By investigating the difference in source characteristics between earthquakes and explosions the paper infers the manifestation of source difference in various variable domains,and seeks for effective means to express such source difference.Extending the approach of source discrimination from time and frequency domain to the cepstrum domain,the paper proposes a method of cepstrum analysis for recognizing the characteristics of seismic sources and establishes criteria for identifying the type of seismic sources.Cepstrum analysis on some recent earthquakes and explosions has been made,and the result shows that the method is quite effective in practice.
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| 关 键 词： | 倒谱分析 震源性质 地震震源 识别方法 人工爆炸 |
| 收稿时间： | 21 March 2002 |
| 修稿时间： | 24 July 2002 |
Cepstrum analysis of seismic source characteristics |
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| Wei Fu-sheng,and Li Ming.Cepstrum analysis of seismic source characteristics[J].Acta Seismologica Sinica(English Edition),2003,16(1):50-58. |
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| Authors: | Wei Fu-sheng and Li Ming |
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| Institution: | Institute of Geophysics, China Seismological Bureau, Beijing 100081, China |
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| Abstract: | This paper introduces the concept of cepstrum. By investigating the difference in source characteristics between earthquakes and explosions the paper infers the manifestation of source difference in various variable domains, and seeks for effective means to express such source difference. Extending the approach of source discrimination from time and frequency domain to the cepstrum domain, the paper proposes a method of cepstrum analysis for recognizing the characteristics of seismic sources and establishes criteria for identifying the type of seismic sources. Cepstrum analysis on some recent earthquakes and explosions has been made, and the result shows that the method is quite effective in practice. |
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| Keywords: | cepstrum seismic source discrimination |
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