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Estimating seismic wavelet based on multivariate scale mixture of Gaussians model

  • Xi'an Jiaotong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

We propose a new method for estimating the seismic wavelet. Suppose a seismic wavelet can be modeled by the formula with three free parameters (scale, frequency and phase). The phase of the wavelet is estimated by constant-phase rotation to the seismic signal, other two parameters are obtained by the higher-order Statistics (HOS) (fourth-order cumulant) matching method. In order to derive the estimator of the higher-order Statistics (HOS), multivariate scale mixture of Gaussians (MSMG) model is applied to formulating the multivariate joint probability density function (PDF) of the seismic signal. By this way, we can represent HOS as a polynomial function of second-order statistics to improve the anti-noise performance and accuracy. In addition, the proposed method can work well for short time series.

源语言英语
主期刊名Society of Exploration Geophysicists International Exposition and 80th Annual Meeting 2010, SEG 2010
出版商Society of Exploration Geophysicists
2835-2839
页数5
ISBN(印刷版)9781617389801
DOI
出版状态已出版 - 2010
活动Society of Exploration Geophysicists International Exposition and 80th Annual Meeting 2010, SEG 2010 - Denver, 美国
期限: 17 10月 201022 10月 2010

出版系列

姓名Society of Exploration Geophysicists International Exposition and 80th Annual Meeting 2010, SEG 2010

会议

会议Society of Exploration Geophysicists International Exposition and 80th Annual Meeting 2010, SEG 2010
国家/地区美国
Denver
时期17/10/1022/10/10

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