改善轴向分辨率的光瞳滤波器  

Pupil Filters Improving Axial Resolution

作　　者：邓小强[1] 王桂英[1] 徐至展[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《光学学报》2000年第7期968-972,共5页Acta Optica Sinica

基　　金：国家自然科学基金!(批准号 6 96 370 30 );面上基金!(6 97770 0 4 )资助课题

摘　　要：给出了一种新型滤波器。它既能提高系统的轴向分辨率又不影响其横向分辨率。利用这种滤波器还可以控制远场旁瓣强度的最大值与主瓣强度最大值之比 (M) ,从而获得较好的超分辨效果。According to superresolution theorem of improving axial resolution, a new axial pupil filters are proposed. The pupil filters are neutral in the transverse direction and superresolving in the axial direction. The filters have small value of M, defined as the maximum value of sidelobes intensity relative to the central core, and relatively good effect of superresolution is attained. The new filters function based on these results are suggested and the superresolving function of midzone of the filters are discussed.

关 键 词：超分辨 光瞳滤波器 轴向分辨率 

分 类 号：TN713[电子电信—电路与系统]