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本文讨论五个问题:(一) 相位移方法原理;(二) 相位移在计算机上实现的步骤;(三) 相位移法怎样与二维滤波相结合;(四) 模型试算;(五)几点讨论。本文对原方法的主要改进点是把相位移法与频率域二维滤波结合在一起进行运算。
This paper discusses five issues: (a) phase shift method principle; (b) phase shift in the computer to achieve the steps; (c) phase shift method and how to combine two-dimensional filter; (d) model trial calculation; Some discussion. In this paper, the main improvement of the original method is the phase shift method and the frequency domain two-dimensional filtering combined operation.