地震信号反演的一种新方法

A New Method of Seismic Inversion

地震反演中,传统反卷积方法对混合相位地震记录不能得到正确的反演结果,本文在格形反卷积的基础上运用全通系统辨识技术,很好地解决了这一问题。考虑到实际地震反演中的非理想因素,本文还引入自适应处理技术用以消除子波时变因素的影响,引入检测技术用以消除噪声的影响。理论和实验均表明本文提出的综合反演方法具有良好的性能。

Traditional deconvolution methods, such as lattice deconvolution, can't give the proper inversion to a mixed phase seismic record, this paper solved this problem by using all-pass system identification technique based on higher-order cumulant. Time-varying wavelet problem and noise problem are also solved in this paper by using adaptive processing technique and detection technique. Both theory and experiments show that this new method has good performance.