Wide Field of View Turbulence Profile Measurement Method

doi:10.3788/CJL201845.0804003

CIOMP OpenIR

	Wide Field of View Turbulence Profile Measurement Method
	Fang, Yuliang; Jin, Zhenyu; Liu, Zhong; Li, Zhenggang
	2018
发表期刊	Zhongguo Jiguang/Chinese Journal of Lasers
ISSN	2587025
卷号	45 期号:8
摘要	The multi-conjugate adaptive optics (MCAO) can effectively reduce the disturbance of turbulent atmosphere. For the design and performance optimization of MCAO technology, it is necessary to measure the atmospheric turbulence profiles of the site. The inversion linear equations of the methods based on differential image motion variance or covariance of extended object are obtained through discretization. The discretization error causes the effective field of view (FOV) not to be very wide. A small FOV limits the number of equations, resulting in turbulence profile inversion results being affected by motion variance or covariance measurement errors. In this paper, taking the PML method as an example, we propose a layer integral coefficient matrix method. This method obviously reduces the discretization error, greatly improves the range of observation FOV, reduces the influence of the covariance error on the measurement results, and improves the accuracy of the turbulence profile inversion. The simulation results show that the FOV of the PML method using layer integral coefficient matrix can reach 400", and the measurement error is also greatly reduced. 2018, Chinese Lasers Press. All right reserved.
关键词	Atmospheric turbulence Adaptive optics Atmospheric optics Atmospheric thermodynamics Matrix algebra Measurement errors
DOI	10.3788/CJL201845.0804003
收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/60855
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Fang, Yuliang,Jin, Zhenyu,Liu, Zhong,et al. Wide Field of View Turbulence Profile Measurement Method[J]. Zhongguo Jiguang/Chinese Journal of Lasers,2018,45(8).
APA	Fang, Yuliang,Jin, Zhenyu,Liu, Zhong,&Li, Zhenggang.(2018).Wide Field of View Turbulence Profile Measurement Method.Zhongguo Jiguang/Chinese Journal of Lasers,45(8).
MLA	Fang, Yuliang,et al."Wide Field of View Turbulence Profile Measurement Method".Zhongguo Jiguang/Chinese Journal of Lasers 45.8(2018).

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