Simulation Result of Multi-Conjugate Adaptive Optics System based on Minimum Mean Square Error Approach Wavefront Reconstruction

被引：0

作者：

Zhang Lanqiang ^{[1
]}

Rao Changhui ^{[1
]}

机构：

[1] Chinese Acad Sci, Lab Adapt Opt, Inst Opt & Elect, Chengdu 610209, Peoples R China

来源：

6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES | 2012年 / 8415卷

关键词：

Multi-conjugate adaptive optics; numerical simulation; minimum mean square error; least square error; guide star number; FIELD-OF-VIEW; PHASE ESTIMATION; TELESCOPE;

D O I：

10.1117/12.975766

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Currently, the multi-conjugate adaptive optics is one of the most promising concepts for large field of view adaptive optics compensation. The minimum mean square error (MMSE) approach is the main method for its wave-front reconstruction. In this article, firstly we briefly present the principle of three-dimension wavefront reconstruction; then the precision between the least square error (LSE), widely used in conventional adaptive optics, and the MMSE is compared by numerical simulation. We also did the study on the number of guide stars required to achieve a fixed field of view in different telescope aperture. The results show that the MMSE is more precise than LSE approach when the noise is considered; and more guide stars are needed for small aperture telescope. Finally, the system performance with different number of the guide stars for small aperture telescope is discussed.

引用

页数：7

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