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文中提出了波动方程偏移一个新的变步长△τ方法,与目前使用的波动方程偏移技术相比较,将提高计算效率1/3到1/2。同时还介绍了推导波动方程偏移的矩阵算法。
In this paper, a new variable step △ τ method for wave equation migration is proposed. Compared with the wave equation migration technique currently used, it will improve the computational efficiency by 1/3 to 1/2. The matrix algorithm for deriving the migration of wave equation is also introduced.