Real-time modal reconstruction algorithm for adaptive optics systems

被引：0
|
作者：
Li, Xin-Yang [1 ]
Wang, Chun-Hong [1 ]
Xian, Hao [1 ]
Jiang, Wen-Han [1 ]
机构：
[1] Lab. on Adaptive Optics, Inst. of Optics and Electron., Chinese Acad. of Sci., P.O. Box 350, Chengdu 610209, China
来源：
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2002年 / 14卷 / 01期
关键词：
Algorithms - Eigenvalues and eigenfunctions - Mathematical models - Matrix algebra - Noise abatement - Real time systems;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The principle of real-time modal reconstruction algorithms used for adaptive optics (AO) systems was introduced. A novel sensor-eigen modal reconstruction algorithm was proposed and analyzed. The sensor-eigen functions were deduced by orthogonalizing the correlation matrix between Hartmann-Shack wave-front sensor and deformable mirror. Compared to the normal direct-gradient reconstruction algorithm, the effect of measurement noise to AO system decreases more easily, the real-time system is more stable and the performances of the whole AO system improves through the modal algorithms. This novel algorithm was applied to a 61-element AO system and the theoretical results were verified by the experimental ones.
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页码：53 / 56
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