CIOMP OpenIR
Subaperture stitching interferometry based on the combination of the phase correlation and iterative gradient methods
R. Y. Wang,Z. S. Gao,D. Zhu,W. J. Liu,W. Ji,Z. Y. Guo,D. S. Wang,L. J. Wang,Y. Xu and Q. Yuan
2020
发表期刊Applied Optics
ISSN1559-128X
卷号59期号:13页码:4176-4182
摘要Subaperture stitching interferometry (SAS) is an important method for map testing of large aperture optical components, in which a mechanical structure is often employed for the testing of each subaperture. By eliminating the phase deviation of the corresponding points in the overlapping regions of every adjacent subaperture, the whole aperture map can be obtained. Accurate subaperture positioning is an important guarantee for precise stitching. In this paper, a hybrid optimization algorithm is proposed to realize subpixel-level positioning accuracy in SAS based on the combination of the phase correlation and iterative gradient methods. The phase correlation method is adopted to calculate the pixel-level positioning deviation first, and the subpixel deviation is derived and then corrected by iterative optimization through the gradient method. The subpixel-level positioning accuracy of the proposed optimization algorithm is verified by simulations and a 76.2 mm off-axis parabolic mirror is chosen as an experimental testing sample. The surface map obtained from the proposed hybrid optimization method is consistent with the full aperture testing result, which also verifies that the proposed optimization algorithm is a powerful tool with subpixel-level positioning accuracy in SAS testing. (C) 2020 Optical Society of America
DOI10.1364/ao.388515
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收录类别SCI ; EI
语种英语
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/64923
专题中国科学院长春光学精密机械与物理研究所
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GB/T 7714
R. Y. Wang,Z. S. Gao,D. Zhu,W. J. Liu,W. Ji,Z. Y. Guo,D. S. Wang,L. J. Wang,Y. Xu and Q. Yuan. Subaperture stitching interferometry based on the combination of the phase correlation and iterative gradient methods[J]. Applied Optics,2020,59(13):4176-4182.
APA R. Y. Wang,Z. S. Gao,D. Zhu,W. J. Liu,W. Ji,Z. Y. Guo,D. S. Wang,L. J. Wang,Y. Xu and Q. Yuan.(2020).Subaperture stitching interferometry based on the combination of the phase correlation and iterative gradient methods.Applied Optics,59(13),4176-4182.
MLA R. Y. Wang,Z. S. Gao,D. Zhu,W. J. Liu,W. Ji,Z. Y. Guo,D. S. Wang,L. J. Wang,Y. Xu and Q. Yuan."Subaperture stitching interferometry based on the combination of the phase correlation and iterative gradient methods".Applied Optics 59.13(2020):4176-4182.
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