| Discrimination Between Nuclear Explosions and Earthquakes: An Application of Wigner Distribution |
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| 作者姓名： | Shen Ping and Zheng ZhizhenInstitute of Geophysics SSB Beijing ChinaCenter for Seismic Data and Informadon SSB Beijing China |
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| 作者单位： | Shen Ping and Zheng ZhizhenInstitute of Geophysics，SSB，Beijing 100081，ChinaCenter for Seismic Data and Informadon，SSB，Beijing 100045，China |
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| 摘 要： | In this paper,the nonstationary theory of Wigner Distribution is used to discriminate between underground nuclear explosions and natural earthquakes.Five underground explosions in Kazakhstan region and seven regional earthquakes in its adjacent areas have been analyzed.The result shows that the transient spectra of underground nuclear explosions are concentrated in the frequency range of 5-10 Hz,while the transient spectra of natural earthquakes are distributed widely from lower frequency to higher frequency.The transient frequency of nuclear explosions shows linearity in the first stage(0
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Discrimination Between Nuclear Explosions and Earthquakes: An Application of Wigner Distribution |
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| Shen Ping and Zheng ZhizhenInstitute of Geophysics,SSB,Beijing ,ChinaCenter for Seismic Data and Informadon,SSB,Beijing ,China.Discrimination Between Nuclear Explosions and Earthquakes: An Application of Wigner Distribution[J].Earthquake Research in China,1996(3). |
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| Authors: | Shen Ping and Zheng ZhizhenInstitute of Geophysics SSB Beijing ChinaCenter for Seismic Data and Informadon SSB Beijing China |
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| Institution: | Shen Ping and Zheng ZhizhenInstitute of Geophysics,SSB,Beijing 100081,ChinaCenter for Seismic Data and Informadon,SSB,Beijing 100045,China |
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| Abstract: | In this paper,the nonstationary theory of Wigner Distribution is used to discriminate between underground nuclear explosions and natural earthquakes.Five underground explosions in Kazakhstan region and seven regional earthquakes in its adjacent areas have been analyzed.The result shows that the transient spectra of underground nuclear explosions are concentrated in the frequency range of 5-10 Hz,while the transient spectra of natural earthquakes are distributed widely from lower frequency to higher frequency.The transient frequency of nuclear explosions shows linearity in the first stage(0
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| Keywords: | Transient spectrum Transient frequency Discrimination Underground nuclear explosion Natural earthquake |
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