OALib Journal期刊
ISSN: 2333-9721
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裂步傅里叶真振幅叠前深度偏移
Keywords: 波动方程,裂步傅里叶,真振幅偏移,照明分析
Abstract:
?由于传统裂步傅里叶叠前深度偏移方法是一种基于单程波波动方程的偏移方法,只能反映波传播的运动学特征,并不能反映波传播的动力学特征,因此不能保持地震数据的真振幅特性。为此本文在传统裂步法的基础上引入了裂步傅里叶真振幅叠前深度偏移算法及其实现流程,即在实现传统裂步法偏移的两个步骤中分别引入不同的真振幅校正算子项对传统的偏移算子进行校正,实现真振幅成像。文中给出此法对marmousi模型进行试算的结果及实际地震数据的偏移结果,表明该算法具有较好的振幅保持特性。
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