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基于模拟退火的连续膜变形镜最优模式复原

Modal reconstruction of continuous membrane deformable mirrors based on simulated annealing

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摘要

为了改善小形变量、镜面控制耦合及其影响函数受到光学系统误差等多种因素的影响的连续膜变形反射镜容易出现波前复原控制电压往往超出了可行域范围的问题,提出采用一种基于模拟退火的波前模式复原算法,其原理通过遍历整个可行域搜索域内最佳的模式控制电压组合,使得目标函数以一定概率达到全局最优,从而得到将入射畸变波前像差的影响降到最小的结果。为了验证和比较模拟退火算法的可行性和准确度,采用了任一人眼波前畸变像差作为自适应光学系统的入射畸变波前,得到的残余波前像差小于直接法、闭环迭代算法的复原误差。结果表明,基于模拟退火的波前模式复原算法具有良好的波前复原性能,并且可结合影响函数的非线性特征描述,为连续膜波前复原控制问题提供一种新的解决途径。

Abstract

Owing to small and coupled response of control channels of the continuous membrane deformable mirror(CMDM)and effect of system error on the its influence function,sometimes,the control voltage of wavefront modal reconstruction is beyond the the control voltage range. The modal reconstruction of wavefront based on the simulated annealing was put forward,which was used to find the optimal control voltages of the CMDM through verifying the total solutions in the feasible field. By the way the target function can be optimal and influence of incidence aberration can be reduced to minimum. Initial aberration of the adaptive optics can be replaced by the random wavefront aberration of human eye. Compared to the ways such as direct-solution or closeloop,the simulated annealing have prefer precision,credibility and least residual error. Because this algorithm has some better performance to reconstruct the incident wavefront,and refers to the nonlinear responses of the influence function,a new solution to correct the wavefront aberration by the CMDM is found.

Newport宣传-MKS新实验室计划
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中图分类号:O436

所属栏目:激光与光电子技术应用

基金项目:国家八六三高技术研究发展计划资助项目(2006AA020804)

收稿日期:2007-07-24

修改稿日期:2007-12-19

网络出版日期:0001-01-01

作者单位    点击查看

童桂:南京航空航天大学 机电学院,南京 210016
廖文和:南京航空航天大学 机电学院,南京 210016
梁春:南京航空航天大学 机电学院,南京 210016

联系人作者:廖文和(cnwho@vip.sina.com)

备注:童桂|男|博士研究生|主要从事生物医学和自适应光学方面的研究工作|(1978-)

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引用该论文

TONG Gui,LIAO Wen-he,LIANG Chun. Modal reconstruction of continuous membrane deformable mirrors based on simulated annealing[J]. Laser Technology, 2008, 32(5): 0517

童桂,廖文和,梁春. 基于模拟退火的连续膜变形镜最优模式复原[J]. 激光技术, 2008, 32(5): 0517

被引情况

【1】童桂,廖文和,梁春. 基于微机械薄膜变形镜的闭环实时模式复原. 激光技术, 2008, 32(6): 635-638

【2】施建中,曹念文. 南京北郊对流层气溶胶激光雷达观测. 激光与光电子学进展, 2012, 49(10): 100101--1

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