快速频率抽取直接二元搜索法合成计算全息图

Synthesizing Computer Generated Hologram by Fast Decimation In Frequency Direct Binary Search Algorithm

给出了一种新型的设计二元计算全息图的ＤＢＳ算法，导出了这种方法的数学模型，通过自行设计的程序计算机解算结果证明，本文中提出的方法，其计算复杂度低于一般的ＤＢＳ算法。为了改善再现象质，作者还提出了一些改进的方法。

A new DBS algorithm to synthesize binary computer generated hologram is given in the paper.The model of this algorithm is derived.The results from the computer emulation experiments indicate that the computation complexity using FDIF DBS algorithm is lower than using using usual DBS algorithm.In order to improve the reconstruction image of the hologram,some methods are discussed and the experimental results are given.The results prove that these methods can improve the reconstruction image of the CGH synthesized by FDIF DBS algorithm to some extent.