Prediction control method to improve the dynamic performance of a close-loop adaptive optics system
文献类型：期刊论文
| 作者 | Li, Xin-Yang1,2; Luo, Qi1,2,3; Yan, Zhao-Jun4 |
| 刊名 | Proceedings of SPIE: Adaptive Optics Systems V
 |
| 出版日期 | 2016 |
| 卷号 | 9909页码:99094W |
| 关键词 | Actuators Adaptive Control Systems Atmospheric Turbulence Forecasting Least Squares Approximations Mechanisms Optical Flows Turbulence Wavefronts Wind |
| ISSN号 | 0277-786X |
| DOI | 10.1117/12.2235563 |
| 文献子类 | C |
| 英文摘要 | The prediction control method can be used to reduce the dynamic performance of an adaptive optics system (AOS) correcting the wavefront distortion of atmosphere turbulence. Some researchers have proved this idea but usually in open-loop condition and based on the wavefront or sub-Aperture gradients of wavefront sensors. It is difficult to predict wavefront distortion in close-loop. But nearly all AOS are running in close-loop in practice to reduce the nonlinear error of wavefront sensor and deformable mirror (DM). In this paper, two prediction methods were proposed to improve the dynamic performance of an AOS both in open-loop and in close-loop. In one method, the Recursive Least-Square (RLS) algorithm was used to calculate the prediction and control parameters of an AOS based on the voltages of DM with 61 actuators. In another method, the Lucas-Kanade optical flow method was used to estimate transverse wind speed and calculate the predicted voltages of DM with 127 actuators. Numerical simulations were carried out with dynamic atmosphere turbulence in different conditions. The residual wave-front error, the Strehl Ratio, and the power spectrum densities were calculated and compared between an AOS with and without the prediction method. The results show that the dynamic control performances of an AOS will be improved significantly by using prediction control methods. © 2016 SPIE. |
| 语种 | 英语 |
| WOS记录号 | WOS:000387429700141 |
| 资助机构 | The Society of Photo-Optical Instrumentation Engineers (SPIE) |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/8442]  |
| 专题 | 光电技术研究所_自适应光学技术研究室（八室） |
| 作者单位 | 1.Key Laboratory of Adaptive Optics, Chinese Academy of Sciences, Chengdu 2.610209, China 3.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 4.610209, China 5.University of Chinese Academy of Sciences, Beijing 6.100039, China 7.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 8.200030, China |
| 推荐引用方式 GB/T 7714 | Li, Xin-Yang,Luo, Qi,Yan, Zhao-Jun. Prediction control method to improve the dynamic performance of a close-loop adaptive optics system[J]. Proceedings of SPIE: Adaptive Optics Systems V,2016,9909:99094W. |
| APA | Li, Xin-Yang,Luo, Qi,&Yan, Zhao-Jun.(2016).Prediction control method to improve the dynamic performance of a close-loop adaptive optics system.Proceedings of SPIE: Adaptive Optics Systems V,9909,99094W. |
| MLA | Li, Xin-Yang,et al."Prediction control method to improve the dynamic performance of a close-loop adaptive optics system".Proceedings of SPIE: Adaptive Optics Systems V 9909(2016):99094W. |
入库方式： OAI收割
来源：光电技术研究所
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