大气湍流对环形拼接望远镜主动控制中光学倾斜测量的影响
文献类型：期刊论文
| 作者 | 袁沭; 金振宇 ; 李银柱; 刘忠
|
| 刊名 | 光学学报(Guangxue Xuebao/Acta Optica Sinica)
 |
| 出版日期 | 2012-12 |
| 卷号 | 32期号:12页码:33-38 |
| 关键词 | 大气光学 环形望远镜 主动控制 波前测量 |
| ISSN号 | 0253-2239 |
| 其他题名 | Effect of atmospheric turbulence on optical tip measurement of active control of ring segmented telescope |
| 产权排序 | 第一完成单位 |
| 中文摘要 | 从理论上分析了大气湍流引起的球面波波前到达角的时空统计特性。讨论了在近地湍流环境中,利用光学倾斜测量方法实现高精度、高带宽的拼接望远镜主动对准的可能性。在研究到达角的空间相关性时考虑了有限湍流外尺度效应。同时,为研究时间相关性,计算了到达角的时间互谱密度。通过数值计算得到了单次短曝光测量误差的均方值以及时间积分抑制误差的效应。给出了在不同湍流环境和0.01″测量精度要求下的倾斜控制带宽。 |
| 英文摘要 | A low-order solar adaptive optics (AO) system, which consists of a fine tracking loop with a tip/tilt mirror and a correlation tracker, and a high-order correction loop with a 37-element deformable mirror, a correlating Shack-Hartmann wavefront sensor and a high-order wavefront correction controller, had been successfully developed and installed at 1-m New Vacuum Solar Telescope of Full-shine Lake (also called Fuxian Lake) Solar Observatory. This system is an update of the 37-element solar AO system designed for the 26-cm Solar Fine Structure Telescope at Yunnan Astronomical Observatory in 2009. The arrangement of subapertures of the Shack-Hartmann wavefront sensor was changed from square to hexagon to achieve better compensation performance. Moreover, the imaging channel of the updated system was designed to observe the Sun at 710nm and 1555nm simultaneously. The AO system was integrated into the solar telescope in 2011, and AO-corrected high resolution sunspots and granulation images were obtained. The observational results show that the contrast and resolution of the solar images are improved evidently after the correction by the AO system. |
| 学科主题 | 天文学 |
| 分类号 | TH743 |
| 收录类别 | EI ; CSCD |
| 语种 | 中文 |
| CSCD记录号 | CSCD:4729377 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4801]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 |
| 推荐引用方式 GB/T 7714 | 袁沭,金振宇,李银柱,等. 大气湍流对环形拼接望远镜主动控制中光学倾斜测量的影响[J]. 光学学报(Guangxue Xuebao/Acta Optica Sinica),2012,32(12):33-38. |
| APA | 袁沭,金振宇,李银柱,&刘忠.(2012).大气湍流对环形拼接望远镜主动控制中光学倾斜测量的影响.光学学报(Guangxue Xuebao/Acta Optica Sinica),32(12),33-38. |
| MLA | 袁沭,et al."大气湍流对环形拼接望远镜主动控制中光学倾斜测量的影响".光学学报(Guangxue Xuebao/Acta Optica Sinica) 32.12(2012):33-38. |
入库方式： OAI收割
来源：云南天文台
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