Numerical simulation investigation of a new approach generating phase screens for modeling a turbulent media

IMECH-IR > 力学所知识产出(1956-2008)

	Numerical simulation investigation of a new approach generating phase screens for modeling a turbulent media
	Chen S(陈涉); Yan HX(严海星); Li SS(李树山)
会议录名称	Proceedings of SPIE - The International Society for Optical Engineering
	2005
会议名称	Astronomical Adaptive Optics Systems and Applications II
会议日期	August 3, 2005 - August 4, 2005
会议地点	San Diego, CA, United states
摘要	In this paper, the theoretical base of the covariance approach for generating random phase screens is analyzed, and corresponding computer program is compiled. Preliminary numerical simulation investigation of this new approach is carried out. We propose to use three methods to evaluate the generated phase screens in a combining way. It is found that a comparison of the phase structure function of generated phase screens with the theoretical one is not enough and often inefficient. Open loop results and close loop results by using phase screens generated by the covariance approach are obtained and compared with those by using phase screens generated by the spectral approach for the first time within our knowledge. It is shown that the phase screens generated by covariance approach include more abundant frequency components than those generated by the spectral approach and these frequency components have obvious influences on the open loop results and the close loop results.
关键词	Atmospheric Propagation Of Optical Waves Covariance Phase Compensation Phase Screens
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收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/60278
专题	力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Chen S,Yan HX,Li SS. Numerical simulation investigation of a new approach generating phase screens for modeling a turbulent media[C]Proceedings of SPIE - The International Society for Optical Engineering,2005.

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