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Application of the Wavelet Packet Method in Discrimination Between Nuclear Explosion and Earthquake 被引量:1

Application of the Wavelet Packet Method in Discrimination Between Nuclear Explosion and Earthquake
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摘要 Although the CTBT (Comprehensive Nuclear Test Ban Treaty) was passed in 1996, it is still necessary to develop new and highly efficient methods (Wu Zhongliang, Chen Yuntai, et al., 1993; Xu Shaoxie, et al.1994; Richard L. Garwin, 1994) to monitor possible events. Many discrimination criteria (Xu Shaoxie, et al.,1994; Institute of Geophysics, Chinese Academy of Sciences, 1976; Richard L. Garwin, 1994) have been put forward since the 1950s. The results show that each of the existing criteria has its own limitation, but the seismological method is an important and efficient method in the discrimination between nuclear explosion and earthquake. Especially in recent years, because of the little and little equivalent as well as the increasing hiding steps used in the test, a number of more efficient seismological methods have been worked out. In this paper, a new discrimination method, the Wavelet Packet Component Ratio (WPCR) method, is put forward. This method makes full use of the difference in variation with time between the spectra of nuclear explosions and earthquakes. Its discrimination efficiency is rather high. Although the CTBT (Comprehensive Nuclear Test Ban Treaty) was passed in 1996, it is still necessary to develop new and highly efficient methods (Wu Zhongliang, Chen Yuntai, et al., 1993; Xu Shaoxie, et al.1994; Richard L. Garwin, 1994) to monitor possible events. Many discrimination criteria (Xu Shaoxie, et al.,1994; Institute of Geophysics, Chinese Academy of Sciences, 1976; Richard L. Garwin, 1994) have been put forward since the 1950s. The results show that each of the existing criteria has its own limitation, but the seismological method is an important and efficient method in the discrimination between nuclear explosion and earthquake. Especially in recent years, because of the little and little equivalent as well as the increasing hiding steps used in the test, a number of more efficient seismological methods have been worked out. In this paper, a new discrimination method, the Wavelet Packet Component Ratio (WPCR) method, is put forward. This method makes full use of the difference in variation with time between the spectra of nuclear explosions and earthquakes. Its discrimination efficiency is rather high.
出处 《Earthquake Research in China》 2004年第1期88-96,共9页 中国地震研究(英文版)
关键词 Wavelet Packet WPCR DISCRIMINATION CRITERION 识别标准 核爆炸 地震学 差分变化 光谱
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  • 1Daubechies,I.Orthonormal bases of compactly supported wavelets, Comm[].Communications on Pure and Applied Mathematics.1988
  • 2Grossmann,A. and J.Morlet.Decomposition of Hardy functions into square integrable wavelets of constant shape, SIAM J[].Math Anal.1984
  • 3Rioul,O. and M.Vetterli[].Wavelets and signal processing IEEE Signal Processing Magazine.1991
  • 4Farge,M.Wavelet transforms and their applications to turbulence, Annu.Rev[].Journal of Fluid Mechanics.1992
  • 5Marr,D. and E.Hildreth.Theory of edge detection, Proc[].Royal Soc.1980
  • 6Mallat,S.A theory for multiresolution signal decomposition: the wavelet representation[].IEEE Transactions on Pattern Analysis and Machine Intelligence.1989
  • 7Mallat,S. G.A theory for multiresolution signal decomposition: the wavelet representation[].IEEE Transactions on Pattern Analysis and Machine Intelligence.1989
  • 8Xu Shaoxie,et al.Study of the progress of nuclear monitor with seismological method[].In: Monitor of the Effect ofNuclear Explosion.1994
  • 9Garbor,D.Theroy of communications[].J Inst Elec Eng.1946
  • 10Wickerhauser,V.High-resolution still picture compression[].Digital Singal Processing: A Review Journal.1992

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