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题名:
Optical axis jitter rejection for double overlapped adaptive optics systems
作者: Luo, Qi1,2,3; Luo, Xi1,2; Li, Xinyang1,2
刊名: OPTICAL REVIEW
出版日期: 2016-04-01
卷号: 23, 期号:2, 页码:273-283
关键词: Adaptive optics systems ; Jitter rejection ; Tip/tilt control ; Spectral analysis
DOI: 10.1007/s10043-016-0196-8
文章类型: Article
英文摘要: Optical axis jitters, or vibrations, which arise from wind shaking and structural oscillations of optical platforms, etc., cause a deleterious impact on the performance of adaptive optics systems. When conventional integrators are utilized to reject such high frequency and narrow-band disturbance, the benefits are quite small despite their acceptable capabilities to reject atmospheric turbulence. In our case, two suits of complete adaptive optics systems called double overlapped adaptive optics systems (DOAOS) are used to counteract both optical jitters and atmospheric turbulence. A novel algorithm aiming to remove vibrations is proposed by resorting to combine the Smith predictor and notch filer. With the help of loop shaping method, the algorithm will lead to an effective and stable controller, which makes the characteristics of error transfer function close to notch filters. On the basis of the spectral analysis of observed data, the peak frequency and bandwidth of vibrations can be identified in advance. Afterwards, the number of notch filters and their parameters will be determined using coordination descending method. The relationship between controller parameters and filtering features is discussed, and the robustness of the controller against varying parameters of the control object is investigated. Preliminary experiments are carried out to validate the proposed algorithms. The overall control performance of DOAOS is simulated. Results show that time delays are a limit of the performance, but the algorithm can be successfully implemented on our systems, which indicate that it has a great potential to reject jitters.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
收录类别: SCI
项目资助者: National Natural Science Fund(61205069)
语种: 英语
WOS记录号: WOS:000378237400014
ISSN号: 1340-6000
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3910
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China
2.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Sichuan, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Luo, Qi,Luo, Xi,Li, Xinyang. Optical axis jitter rejection for double overlapped adaptive optics systems[J]. OPTICAL REVIEW,2016,23(2):273-283.
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