摘要
单帧远场图像重构波前像差的方法在结构简便性方面有独特的优势。然而,传统的基于单帧远场图像的波前重构算法存在多解问题,算法收敛过程容易陷入停滞。本文在分析单帧相位反演方法的多解问题成因的基础上,提出了一种基于Walsh函数的二维离散相位调制的波前重构方法。此种方法可以有效地打破近场波前的对称性,解决多解问题。仿真结果表明,该方法只需一个远场图像就可以精确地重建波前像差。
The reconstruction of wavefront from single far-field image data has unique advantages in simplicity of structure.However,the traditional wavefront reconstruction algorithm has multiple solutions based on single far-field image,its iterative process easily falls into stagnation.In this paper,based on the analysis of the multi-solution problem of single-frame phase retrieval method,a wavefront reconstruction method based on Walsh function two-dimensional discrete phase modulation is proposed.This method can effectively break the symmetry of near-field wavefront and overcome problem of multiple solutions.The simulation results show that the method can accurately reconstruct wavefront aberration with only one far-field image.
作者
孔庆峰
王帅
杨平
林海奇
刘永
许冰
Kong Qingfeng;Wang Shuai;Yang Ping;Lin Haiqi;Liu Yong;Xu Bing(Key Laboratory of Adaptive Optics,Chinese Academy of Sciences,Chengdu,Sichuan 610209,China;School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu,Sichuan 610054,China;Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu,Sichuan 610209,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《光电工程》
CAS
CSCD
北大核心
2020年第6期33-42,共10页
Opto-Electronic Engineering
基金
国家自然科学基金资助项目(61805251)
中国科学院青年创新促进会资助项目(2017429)。
关键词
相位反演
像差
远场
二维离散调制
phase retrieval
aberration
far-field
two-dimensional discrete modulation
