Tilt-correction adaptive optical system for Solar Telescope of Nanjing University

Changhui Rao; Wenhan Jiang; Cheng Fang; Ning Ling; Weichao Zhou; Mingde Ding; Xuejun Zhang; Donghong Chen; Mei Li; Xiufa Gao; Tian Mi

doi:10.1117/12.460278

11 February 2003 Tilt-correction adaptive optical system for solar telescope of Nanjing University

Changhui Rao, Wenhan Jiang, Cheng Fang, Ning Ling, Weichao Zhou, Mingde Ding, Xuejun Zhang, Donghong Chen, Mei Li, Xiufa Gao, Tian Mi

Author Affiliations +

Proceedings Volume 4853, Innovative Telescopes and Instrumentation for Solar Astrophysics; (2003) https://doi.org/10.1117/12.460278
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

A tilt-correction adaptive optical system installed at 430mm Solar Telescope at Nanjing University has been in operation. It is made up of a tip-tile mirror, a correlation tracker and an imaging CCD camera. The Absolute Difference algorithm is used in order to detect image motion in the correlation tracker. The sampling frequency of the system is 419Hz. In this paper, the configuration of the system is described. The observation results are reported. Furthermore, the performance of the system is analyzed. The residual jitter of 0.14arcsec has been achieved. The error rejection bandwidth of the system can be adjusted in the range from 5Hz to 28Hz according to the beacon size and the strength of the atmospheric turbulence.

Citation Download Citation

Changhui Rao, Wenhan Jiang, Cheng Fang, Ning Ling, Weichao Zhou, Mingde Ding, Xuejun Zhang, Donghong Chen, Mei Li, Xiufa Gao, and Tian Mi "Tilt-correction adaptive optical system for solar telescope of Nanjing University", Proc. SPIE 4853, Innovative Telescopes and Instrumentation for Solar Astrophysics, (11 February 2003); https://doi.org/10.1117/12.460278

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