Simulation of the Imaging Quality of Ground-based Telescopes affected by Atmospheric Disturbances | |
Yubin Ren ; Songfeng Kou ; Bozhong Gu | |
2014-08-04 | |
会议日期 | 2014-6-22 |
会议地点 | Montréal, Quebec, Canada |
关键词 | Ground-based telescope imaging model atmospheric disturbances phase screen avalanche photodiode array(APD arrays) |
卷号 | 9148 |
页码 | Vol.9148 62-1-9 |
英文摘要 |
Ground-based telescope imaging model is developed in this paper, the relationship between the atmospheric disturbances and the ground-based telescope image quality is studied. Simulation of the wave-front distortions caused by atmospheric turbulences has long been an important method in the study of the propagation of light through the atmosphere. The phase of the starlight wave-front is changed over time, but in an appropriate short exposure time, the atmospheric disturbances can be considered as “frozen”. In accordance with Kolmogorov turbulence theory, simulating atmospheric disturbances of image model based on the phase screen distorted by atmospheric turbulences is achieved by the fast Fourier transform (FFT). Geiger mode avalanche photodiode array (APD arrays) model is used for atmospheric wave-front detection, the
image is achieved by inversion method of photon counting after the target starlight goes through phase screens and ground-based telescopes. Ground-based telescope imaging model is established in this paper can accurately achieve the relationship between the quality of telescope imaging and monolayer or multilayer atmosphere disturbances, and it is great significance for the wave-front detection and optical correction in a Multi-conjugate Adaptive Optics system (MCAO). |
会议主办者 | SPIE |
会议录 | Adaptive Optics Systems IV |
会议录出版者 | SPIE |
学科主题 | 天文技术与方法 |
内容类型 | 会议论文 |
源URL | [http://ir.niaot.ac.cn/handle/114a32/808] |
专题 | 南京天文光学技术研究所_中科院南京天光所知识成果_会议论文 南京天文光学技术研究所_望远镜工程中心_会议论文 |
推荐引用方式 GB/T 7714 | Yubin Ren,Songfeng Kou,Bozhong Gu. Simulation of the Imaging Quality of Ground-based Telescopes affected by Atmospheric Disturbances[C]. 见:. Montréal, Quebec, Canada. 2014-6-22. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论