中文摘要：

基于叠加统计独立散斑图像的散斑抑制原理，设计了一个具有 N 个透光孔的掩模板，将其放置于成像透镜出瞳面上，理论研究了产生统计独立散斑图像所需的条件。在简化光学系统中，将散射片与探测面分别置于透镜成像共轭面上，通过系统实验，分析了多孔掩模板上相邻两个透光孔的不同中心间距以及单个透光孔孔径对统计独立散斑图像形成的影响，其中单个透光孔孔径也会影响散斑颗粒的大小。在不考虑实验装置对测试精度的影响下，实验结果与理论分析吻合。

英文摘要：

Based on the speckle suppression theory of the superimposed statistically independent speckle image, a mask with N apertures is designed. It is placed in the pupil plane of the imaging lens. Required conditions of producing the statistically independent speckle images are studied theoretically. In the simplified optical system, diffuser and the detection plane of the CCD are placed on the conjugate imaging planes of the lens, respectively. The effects of the center spacing between the adjacent apertures and the single aperture diameter on the formation of statistically independent speckle image are experimentally analyzed. Diameter of the single aperture has an effect on the speckle particle size. Without considering the impact of the experimental apparatus on the measured accuracy, the experimental results agree with the theoretical analysis.