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对基于离散Fourier变换的内源全息图重构计算方法作了深入系统的分析 ,讨论了如何计算整个球面全息图对原子重构像的贡献 ,克服了以往该方法只能计算半个球面全息图的不足 ,并运用采样定理知识 ,分析了全息图的采样率、重构像的空间范围和分辨率等问题 .
In this paper, we do a deep and systematic analysis of the calculation method of endogenous hologram reconstruction based on discrete Fourier transform. We discuss how to calculate the contribution of the entire spherical hologram to the atomic reconstruction image, and overcome the problem that only half of the spherical hologram The problems of hologram sampling rate, spatial extent and resolution of reconstructed image are analyzed.