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Optical Engineering • Open Access

Mixed sensitivity H-infinity control of an adaptive optics system

Paper Abstract

Design of the controller of an adaptive optical system is very complex because its model is usually with uncertainty. To deal with uncertainty and to improve robust stability, the mixed sensitivity H control has been introduced to design the controller. In order to testify the validity, wavefront aberration correction capability as well as the robust stability has been compared between the mixed sensitivity H controller and the classic integral controller. The computer simulation results demonstrate that the system with the mixed sensitivity H controller, though it cannot guarantee a better correction performance, has greater robust stability than the one with the classic integral controller. That is to say, greater robust stability is achieved at the expense of the correction capability in the system with H controller. Moreover, the greater the uncertainty is, the more proceeds the mixed sensitivity H controller will produce. It proves the efficiency of the mixed sensitivity H controller in dealing with uncertainty in adaptive optics system.

Paper Details

Date Published: 28 September 2016
PDF: 10 pages
Opt. Eng. 55(9) 094106 doi: 10.1117/1.OE.55.9.094106
Published in: Optical Engineering Volume 55, Issue 9
Show Author Affiliations
Dingan Song, Institute of Optics and Electronics (China)
Univ. of Electronic Science and Technology of China (China)
Univ. of Chinese Academy of Sciences (China)
Xinyang Li, Institute of Optics and Electronics (China)
Zhenming Peng, Univ. of Electronic Science and Technology of China (China)


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