A review on control methodologies of disturbance rejections in optical telescope

Structural vibrations in Tip-Tilt modes usually affect the closed-loop performance of astronomically optical telescopes. In this paper, the state of art control methods-proportional integral (PI) control, linear quadratic Gaussian (LQG) control, disturbance feed forward (DFF) control, and disturbanc...

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Autores principales:	Tang Tao, Niu Shuaixu, Ma Jiaguang, Qi Bo, Ren Ge, Huang Yongmei
Formato:	article
Lenguaje:	EN
Publicado:	Institue of Optics and Electronics, Chinese Academy of Sciences 2019
Materias:	structural vibrations astronomical telescope q-filter error-based dobc tip-tilt mirror Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/9b90a4763f9e4a51b05843febded55b2
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spelling	oai:doaj.org-article:9b90a4763f9e4a51b05843febded55b22021-11-11T09:52:58ZA review on control methodologies of disturbance rejections in optical telescope2096-457910.29026/oea.2019.190011https://doaj.org/article/9b90a4763f9e4a51b05843febded55b22019-10-01T00:00:00Zhttp://www.oejournal.org/article/doi/10.29026/oea.2019.190011https://doaj.org/toc/2096-4579Structural vibrations in Tip-Tilt modes usually affect the closed-loop performance of astronomically optical telescopes. In this paper, the state of art control methods-proportional integral (PI) control, linear quadratic Gaussian (LQG) control, disturbance feed forward (DFF) control, and disturbance observer control (DOBC) of Tip-Tilt mirror to reject vibrations are first reviewed, and then compared systematically and comprehensively. Some mathematical transformations allow PI, LQG, DFF, and DOBC to be described in a uniform framework of sensitivity function that expresses their advantages and disadvantages. In essence, feed forward control based-inverse model is the main idea of current techniques, which is dependent on accuracies of models in terms of Tip-Tilt mirror and vibrations. DOBC can relax dependences on accuracy model, and therefore this survey concentrates on concise tutorials of this method with clear descriptions of their features in the control area of disturbance rejections. Its applications in various conditions are reviewed with emphasis on the effectiveness. Finally, the open problems, challenges and research prospects of DOBC of Tip-Tilt mirror are discussed.Tang TaoNiu ShuaixuMa JiaguangQi BoRen GeHuang YongmeiInstitue of Optics and Electronics, Chinese Academy of Sciencesarticlestructural vibrationsastronomical telescopeq-filtererror-based dobctip-tilt mirrorOptics. LightQC350-467ENOpto-Electronic Advances, Vol 2, Iss 10, Pp 190011-1-190011-8 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	structural vibrations astronomical telescope q-filter error-based dobc tip-tilt mirror Optics. Light QC350-467
spellingShingle	structural vibrations astronomical telescope q-filter error-based dobc tip-tilt mirror Optics. Light QC350-467 Tang Tao Niu Shuaixu Ma Jiaguang Qi Bo Ren Ge Huang Yongmei A review on control methodologies of disturbance rejections in optical telescope
description	Structural vibrations in Tip-Tilt modes usually affect the closed-loop performance of astronomically optical telescopes. In this paper, the state of art control methods-proportional integral (PI) control, linear quadratic Gaussian (LQG) control, disturbance feed forward (DFF) control, and disturbance observer control (DOBC) of Tip-Tilt mirror to reject vibrations are first reviewed, and then compared systematically and comprehensively. Some mathematical transformations allow PI, LQG, DFF, and DOBC to be described in a uniform framework of sensitivity function that expresses their advantages and disadvantages. In essence, feed forward control based-inverse model is the main idea of current techniques, which is dependent on accuracies of models in terms of Tip-Tilt mirror and vibrations. DOBC can relax dependences on accuracy model, and therefore this survey concentrates on concise tutorials of this method with clear descriptions of their features in the control area of disturbance rejections. Its applications in various conditions are reviewed with emphasis on the effectiveness. Finally, the open problems, challenges and research prospects of DOBC of Tip-Tilt mirror are discussed.
format	article
author	Tang Tao Niu Shuaixu Ma Jiaguang Qi Bo Ren Ge Huang Yongmei
author_facet	Tang Tao Niu Shuaixu Ma Jiaguang Qi Bo Ren Ge Huang Yongmei
author_sort	Tang Tao
title	A review on control methodologies of disturbance rejections in optical telescope
title_short	A review on control methodologies of disturbance rejections in optical telescope
title_full	A review on control methodologies of disturbance rejections in optical telescope
title_fullStr	A review on control methodologies of disturbance rejections in optical telescope
title_full_unstemmed	A review on control methodologies of disturbance rejections in optical telescope
title_sort	review on control methodologies of disturbance rejections in optical telescope
publisher	Institue of Optics and Electronics, Chinese Academy of Sciences
publishDate	2019
url	https://doaj.org/article/9b90a4763f9e4a51b05843febded55b2
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A review on control methodologies of disturbance rejections in optical telescope

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