数字全息模拟软件，用菲涅尔衍射还原全息图得到原来的图像-Digital holographic simulation software, using the the Fresnel diffraction restore hologram original image

用角谱法计算菲涅尔衍射图样，计算出后加上GS算法即可得出全息图-Fresnel diffraction pattern is calculated using the angular spectrum method, after adding GS algorithm to calculate the hologram can be derived

菲涅尔单缝衍射图像，改变波长对图像的影响-Fresnel single slit diffraction image, the image changes affect wavelength