| 层状介质中地震面波频散函数和体波广义反射系数的计算 |
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| 引用本文： | 李幼铭,束沛镒.层状介质中地震面波频散函数和体波广义反射系数的计算[J].地球物理学报,1982,25(2):130-139. |
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| 作者姓名： | 李幼铭 束沛镒 |
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| 作者单位： | 中国科学院地球物理研究所 |
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| 摘 要： | 本文在B、P、C坐标中给出了弹性波在横向均匀介质中的传播矩阵,并将其表示为五个形式简单的矩阵乘积,其中有四个矩阵是与频率无关的。我们用传播矩阵的分离方式,将Abo-Zena（1979）算法大量简化。用本文的算法计算综合地震图时,计算量要比文献2,7,8]的算法少一半以上。 文中还给出了地震面波频散函数和体波广义反射系数的快速计算步骤。
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| 关 键 词： | 广义反射系数 频散函数 地震面波 层状介质 体波 位移应力矢量 传播矩阵 地球物理学报 面波频散 算法 |
| 收稿时间： | 1980-04-21 |
ON SURFACE WAVE DISPERSION AND BODY WAVE GENERALIZED REFLECTION COEFFICIENT COMPUTATIONS FOR LAYERED MEDIA |
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| LI YOU-MINQ,SHU PEI-YI.ON SURFACE WAVE DISPERSION AND BODY WAVE GENERALIZED REFLECTION COEFFICIENT COMPUTATIONS FOR LAYERED MEDIA[J].Chinese Journal of Geophysics,1982,25(2):130-139. |
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| Authors: | LI YOU-MINQ SHU PEI-YI |
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| Institution: | Institute of Geophysics, Academia Sinica |
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| Abstract: | In this paper, we have given the propagator matrix of elastic wave in a lateral homogeneous medium for B. P. G. coordinate system. This propagator matrix may be represented with five matrix factors, among which four matrices are independent of the frequency. We simplify the Abo-Zena's （1979） method by this decomposition of the propagator matrix. The amount of calculation by the present method is less than those given in reference 2, 7, 8].The fast algorithm for the computations of the seismic surface wave dispersion function and body wave generalized reflection coefficent are also given in this paper. |
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