【摘要】 针对起伏地表条件下的地震波数值模拟问题,提出将起伏的地表映射到一个规则的长方形网格坐标系中,并在此基础上推导出变换域中的波动方程。根据导出来的波动方程应用有限余弦变换有限差分方法进行地震波场的数值模拟,以解决起伏地表条件下的数值模拟。更多还原

【Abstract】 To settle the quession of numerical simulation under the undulating surface,this paper raise a plan undulating surface mapping rules to a rectangular grid coordinate system and based on this,deducing the scalar wave equation in transform domain,According guided the equation we carried out the seismic wave field numerical simulation by using transform of limited cosine and method of finite difference,to complete the undulating surface under the conditions of numerical simulation.更多还原