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《Computer Technology and Development》 2010-07
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Fast Spectral Analysis of Seismic Signal Based on Matching Pursuits Algorithm

LIU Ji-cheng1,FU Shuang1,2(1.Department of Electrical Engineering,Daqing Petroleum Institute,Daqing 163318,China;2.Department of Electronics and Communication Engineering,Heilongjiang Bayi Agricultural University,Daqing 163319,China)  
Because of the flexible self-adaptation,matching pursuits algorithm has been applied to many areas,but still has the problem of huge computational cost,so it is hard to be adopted in practice.To resolve the problem of huge computational cost,introduced the principle of matching pursuits algorithm firstly.A fast algorithm based on genetic algorithm was proposed secondly.This algorithm could decrease the amount of the computation effectively and solve the problem of huge computation.At the end,a segment of seismic signal was analyzed in time-frequency plane.In such a way the interference term in wigner distribution was eliminated,so the time-frequency information in the signal could be revealed.The result showed that the modified MP algorithm could be used as an efficient spectral analysis algorithm of seismic signal,and provided an effective means for hydrocarbon detection and reservoir description.
【Fund】: 第三届黑龙江省新世纪优秀人才支持计划
【CateGory Index】: P631.44;TN911.6
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