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《Progress in Geophysics》 2007-03
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A method of extracting seismic wavelet based on bispectrum amplitude and phase reconstruction

LI Ya-jun1,LI Yue2,GAO Ying1(1.College of Geoexploration Science and Technology,Jilin University,Changchun 130026,China;2.College of Communication Engineering,Jilin University,Changchun 130012,China)  
This paper is based on the fact that bispectrum of seismic signals contains amplitude and phase information of seismic wavelet,also has strong anti-noise-interference ability besides.A method of extracting wavelet using bispectrum amplitude and phase reconstruction is introduced in this paper.After extracting amplitude and phase information of wavelet,one can completely reconstruct seismic wavelet by inverse Fourier transform.A new method on choosing the initial value for recursion formula of bispectrum phase reconstruction has improved the wavelet estimation stability.The feasibility of the method is demonstrated by the simulation testing.
【Fund】: 国家自然科学基金资助项目(40574051)资助
【CateGory Index】: P631.4
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