| 临界窗口外S波分裂的初步研究 |
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| 引用本文： | 刘希强,李清河,李红.临界窗口外S波分裂的初步研究[J].西北地震学报,1995,17(3):10-16. |
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| 作者姓名： | 刘希强 李清河 李红 |
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| 作者单位： | 山东省地震局，国家地震局兰州地震研究所 |
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| 摘 要： | 本文在详细讨论了自由界面对入射Ｓ波的影响的基础上，首次提出一种对临界窗口之外的Ｓ波分裂资料的处理方法。首先对径向和竖向记录资料进行振幅和相位矫正，进而利用最大特征值和波形识别算子法（刘希强，１９９２）对资料进行分析。利用本文提出的方法对天水爆破资料进行了分析，结果表明，爆破资料显示了比较明显的Ｓ波震相，且产生了明显的Ｓ波分裂。
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| 关 键 词： | S波分裂 地震数据 各向异性介质 地震波 |
| 收稿时间： | 1994/12/23 0:00:00 |
TENTATIVE STUDY OF S WAVE FISSION OUTSIDE CRITICAL WINDOW |
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| Liu Xqiang,LiQinghe and Li Hong.TENTATIVE STUDY OF S WAVE FISSION OUTSIDE CRITICAL WINDOW[J].Northwestern Seismological Journal,1995,17(3):10-16. |
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| Authors: | Liu Xqiang LiQinghe and Li Hong |
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| Institution: | Seismological Bureau of Shandong Province, Jinan 250021,Seismological Bureau of Shandong Province, Jinan 250021 and Seismological Bureau of Shandong Province, Jinan 250021 |
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| Abstract: | Based on the discussion about the effects of free-surface on the incident shear wave,thispaper first puts forward a method used to treat the S-wave splitting data outside the criticalwindow. After correcting the amplitude and phase of vertical and radial components, authorsanalysed the data by using the greatest characteristic values and waveform discriminationoperator method,and also analysed explosion data in Tianshui area of Gansu. It may be seenthe data show the seismic phase of S wave and S wave fission. |
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| Keywords: | S wave fission Free interface SH wave SV wave Anisotropic medium |
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