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Title:
Simulation of the Imaging Quality of Ground-based Telescopes affected by Atmospheric Disturbances
Author: Ren, YuBin(任玉斌) ; Kou, SongFeng(寇松峰) ; Gu, BoZhong(顾伯忠)
Issued Date: 2014-08-04
Conference Date: 2014-6-22
Conference Place: Montréal, Quebec, Canada
Keyword: Ground-based telescope ; imaging model ; atmospheric disturbances ; phase screen ; avalanche photodiode array(APD arrays)
Subject: 天文技术与方法
English Abstract:
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).
Sponsorship: SPIE
Source: Adaptive Optics Systems IV
Publisher: SPIE
Content Type: 会议论文
URI: http://ir.niaot.ac.cn/handle/114a32/808
Appears in Collections:中科院南京天光所知识成果_会议论文
望远镜工程中心_会议论文

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Recommended Citation:
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.
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文件名: Simulation of the imaging quality of ground-based telescopes affected by atmospheric disturbances.pdf
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