scholarly journals A decoupling control algorithm based on numerical orthogonal polynomials for a woofer-tweeter adaptive optics system

2021 ◽  
Author(s):  
ping yang ◽  
Lingxi Kong ◽  
Tao Cheng ◽  
Shuai Wang ◽  
Chao Yang ◽  
...  
Keyword(s):  
Orthogonal Polynomials ◽  
Adaptive Optics ◽  
Control Algorithm ◽  
Decoupling Control ◽  
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

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

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.

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

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.

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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