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Theoretical possibilities of miniaturized differential image motion monitor

文献类型：会议论文

作者Hu G(胡钢)1,2; Xiang YY(向永源)1; Jin ZY(金振宇)1,2
出版日期2025-12-16
会议日期2025-08-29
会议地点Kunming, China
关键词Wavefronts Miniaturization Design Wavefront errors Environmental monitoring Error analysis Point spread functions Turbulence Photons Telescopes
卷号14004
DOI10.1117/12.3091411
英文摘要Differential image motion monitor is extensively utilized in measurement of atmospheric seeing. The overly simplified approximations in its classical theory require the ratio between baseline length and sub-aperture diameter to exceed two, which makes it difficult to miniaturize differential image motion monitor. This paper overcomes approximations in classical theory and extends differential image motion theory. The extended theory allows the ratio between baseline length and sub-aperture diameter to be smaller than two, even one. The difference between Zernike tilt (Z-tilt) and Gradient tilt (G-tilt) has been considered and studied in extended equations. The angle between baseline and wavefront tilt evaluation direction has been set to be arbitrary for generality. The influence of exposure time and wind has been further investigated for miniaturized differential image motion monitor. Two design examples of miniaturized differential image motion monitor has been presented and has been verified via numerical experiments. This study provides theoretical basis for design and application of miniaturized differential image motion monitor. © 2025 SPIE.
产权排序第1完成单位
资助机构N/A
会议录Proceedings of SPIE - The International Society for Optical Engineering
文献子类Conference article (CA) -
学科主题物理学 ; 光学 ; 机械工程 ; 仪器仪表技术 ; 光学技术与仪器
语种英语
URL标识查看原文
资助项目N/A
ISSN号0277-786X
ISBN号9781510699649
源URL[http://ir.ynao.ac.cn/handle/114a53/28872]  
专题天文技术实验室
作者单位1.Yunnan Observatories, Kunming, China;
2.University of Chinese academy of sciences, Beijing, China
推荐引用方式
GB/T 7714		 Hu G,Xiang YY,Jin ZY. Theoretical possibilities of miniaturized differential image motion monitor[C]. 见:. Kunming, China. 2025-08-29.

入库方式： OAI收割

来源：云南天文台

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