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OALib Journal期刊
ISSN: 2333-9721
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有效邻域波场近似框架下三维起伏地表高斯束地震正演模拟
Keywords: 有效邻域,波场近似,三维起伏地表,高斯束,正演模拟
Abstract:
？在传统高斯束正演模拟的基础上,针对三维起伏地表模型使用有效邻域波场近似导出了三维起伏地表高斯束正演公式,并给出了笛卡尔坐标系下相应的实现算法.对典型的三维起伏地表模型进行试算,结果表明:本文方法可以较好地刻画由起伏地表引起的波场畸变和由复杂构造引起的同相轴干涉现象,充分体现了高斯束在处理起伏地表条件的优越性;试算得到的射线路径及单炮记录证实了本方法的正确性以及对三维复杂地表模型较好的适应性.
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