The control algorithm for adaptive optics system based on the focal spot radius minimizing

2016 ◽  
Keyword(s):  
Adaptive Optics ◽  
Control Algorithm ◽  
Focal Spot ◽  
Spot Radius ◽  
Adaptive Optics System

A control algorithm for an adaptive optics system based on the focal spot radius minimization

2017 ◽  
Vol 30 (2) ◽  
pp. 198-202 ◽  
Author(s):  
D. A. Yagnyatinskiy ◽  
D. M. Lyakhov ◽  
A. N. Borshevnikov ◽  
V. N. Fedoseyev
Keyword(s):  
Adaptive Optics ◽  
Control Algorithm ◽  
Focal Spot ◽  
Spot Radius ◽  
Adaptive Optics System

A decoupling control algorithm for Woofer–Tweeter adaptive optics system in generalized irregular pupil region

2020 ◽  
Vol 472 ◽  
pp. 125856
Author(s):  
Tao Cheng ◽  
ZhenXing Xu ◽  
Kangjian Yang ◽  
Shuai Wang ◽  
Xin He ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Control Algorithm ◽  
Decoupling Control ◽  
Adaptive Optics System

scholarly journals A Zernike mode decomposition decoupling control algorithm for dual deformable mirrors adaptive optics system

2013 ◽  
Vol 21 (20) ◽  
pp. 23885 ◽  
Author(s):  
Wenjin Liu ◽  
Lizhi Dong ◽  
Ping Yang ◽  
Xiang Lei ◽  
Hu Yan ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Control Algorithm ◽  
Decoupling Control ◽  
Deformable Mirrors ◽  
Mode Decomposition ◽  
Adaptive Optics System

LMI-Based Decentralized PID Controller Design With Application to the Shape Control of Magnetic Fluid Deformable Mirrors

2010 ◽  
Author(s):  
Zhizheng Wu ◽  
Azhar Iqbal ◽  
Foued Ben Amara
Keyword(s):  
Adaptive Optics ◽  
Output Feedback ◽  
Pid Controller ◽  
Control Algorithm ◽  
Closed Loop ◽  
Controller Design ◽  
Design Method ◽  
Pid Controller Design ◽  
Static Output ◽  
Adaptive Optics System

In this paper, a decentralized robust PID controller design method is proposed for multi-input multi-output systems. The system model is first decoupled in the low frequency range, and only the diagonal entries in the DC-decoupled plant model are retained. To deal with the resulting unmodeled high frequency dynamics, a decentralized robust PID controller design method is proposed, where the robust stability and transient response performance of the resulting closed loop system are formulated as a multi-objective H∞/H2 static output feedback problem. The desired parameters of the PID controller are determined by solving a static output feedback problem using linear matrix inequalities (LMIs). Finally, the performance of the proposed control algorithm is experimentally evaluated on the adaptive optics system involving a prototype magnetic fluid deformable mirror (MFDM). The experimental results illustrate the effectiveness of the proposed control algorithm for the MFDM surface shape tracking in the closed loop adaptive optics system.

Mechanical Oscillations Simulation of an Adaptive Flexible Mirror

2015 ◽  
Vol 792 ◽  
pp. 546-550
Author(s):  
Feodor Kanev ◽  
Nailia Makenova ◽  
Roman Nesterov
Keyword(s):  
Adaptive Optics ◽  
Information Transfer ◽  
Control Algorithm ◽  
Active Element ◽  
Nonlinear Crystal ◽  
Phase Conjugation ◽  
Full Field ◽  
Mechanical Oscillations ◽  
Reflecting Surface ◽  
Adaptive Optics System

The whole model of adaptive optics system of energy and information transfer should include a model of an active element [1] construction of which is defined by parameters of the system and beam control algorithm. In the algorithm of full-field phase conjugation a nonlinear crystal or two flexible mirrors with a layer of free space between them are usually employed [2, 3], while a system of phase conjugation requires a flexible mirror as an active element [4]. In the paper the model of a flexible mirror is considered which takes into account dynamic oscillation of reflecting surface.

Decoupling Control Algorithm Based on Laplacian Eigenfunction for Woofer-Tweeter Adaptive Optics System

2018 ◽  
Vol 45 (9) ◽  
pp. 0905003
Author(s):  
程涛 Cheng Tao ◽  
刘文劲 Liu Wenjin ◽  
杨康健 Yang Kangjian ◽  
文良华 Wen Lianghua ◽  
何星 He Xing ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Control Algorithm ◽  
Decoupling Control ◽  
Adaptive Optics System

Comparison between iterative wavefront control algorithm and direct gradient wavefront control algorithm for adaptive optics system

2015 ◽  
Vol 24 (8) ◽  
pp. 084214 ◽  
Author(s):  
Sheng-Yi Cheng ◽  
Wen-Jin Liu ◽  
Shan-Qiu Chen ◽  
Li-Zhi Dong ◽  
Ping Yang ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Control Algorithm ◽  
Wavefront Control ◽  
Adaptive Optics System
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