Numerical Simulation Investigations of the Dynamic Control Process and Frequency Response Characteristics in an Adaptive Optics System

IMECH-IR > 力学所知识产出(1956-2008)

	Numerical Simulation Investigations of the Dynamic Control Process and Frequency Response Characteristics in an Adaptive Optics System
	Yan HX(严海星); Li SS(李树山); Chen S(陈涉)
会议录名称	Proc. SPIE 4494
	2002
页码	#VALUE!
会议名称	Conference on Adaptive Optics Systems and Technology II
会议日期	JUL 30-AUG 01, 2001
会议地点	SAN DIEGO, CA
摘要	The dynamic control process in an adaptive optics (AO) system is the third important factor to affect the performances of the AO system. A numerical simulation of the dynamic control process in an AO system is carried out for the first time to complete a comprehensive numerical simulation of an AO system. By means of the numerical simulation the long-exposure Strehl ratio and other useful metrics for evaluating the performances of an AO system can be obtained. In comparison to the theoretical analyses of automatic control theory, a numerical simulation of the dynamic control process in an AO system is advantageous. The frequency response characteristics are closely related to the dynamic control performance of an AO system. The bandwidth, phase margin and gain margin which are very important parameters for experimenters can be obtained conveniently from a numerical simulation of the frequency response characteristics. A numerical simulation of the frequency response characteristics in an AO system is presented in this paper for the first time. The numerical simulation results agree with the experimental data excellently. The simulation computational results of frequency response by using composite input of multiple frequencies compare to the single-frequency simulation results very well and can be used to determine the practical parameters of bandwidth and margins. The performances of an AO system can be effectively investigated by means of a combination of a numerical simulation of frequency response characteristics with that of the dynamic control process.
WOS记录号	WOS:000175163000016
ISBN号	0-8194-4208-9
URL	查看原文
收录类别	CPCI-S ; EI
语种	英语
引用统计
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/15816
专题	力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Yan HX,Li SS,Chen S. Numerical Simulation Investigations of the Dynamic Control Process and Frequency Response Characteristics in an Adaptive Optics System[C]Proc. SPIE 4494,2002:#VALUE!.

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