Discrete Time Dynamic Model for Telescope Auto-Guiding System

Discrete Time Dynamic Model for Telescope Auto-Guiding System

In the auto-guiding system for obtaining a long exposure astrophotography, CCD camera is usually used for measuring guide errors which are affected by optical dispersion and mechanical disturbances. In this paper, a discrete time dynamic model and a performance index are proposed for analysing the a...

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Bibliographic Details
Main Author: Joon Hwa Lee
Format: Article
Language:English
Published: Korean Space Science Society (KSSS) 2007-12-01
Series:Journal of Astronomy and Space Sciences
Subjects:
telescope
tracking control
CCD camera
automatic control system
instrumentation
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2007/v24n4/OJOOBS_2007_v24n4_431.pdf
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spelling doaj-c2935d50ddaa4b7dbacf922f4c6db6322020-11-24T22:01:50ZengKorean Space Science Society (KSSS)Journal of Astronomy and Space Sciences2093-55872093-14092007-12-0124443145010.5140/JASS.2007.24.4.431Discrete Time Dynamic Model for Telescope Auto-Guiding SystemJoon Hwa Lee0School of Electrical and Computer Engineering University of Seoul, Seoul 130-743, KoreaIn the auto-guiding system for obtaining a long exposure astrophotography, CCD camera is usually used for measuring guide errors which are affected by optical dispersion and mechanical disturbances. In this paper, a discrete time dynamic model and a performance index are proposed for analysing the auto-guiding system. The optimal gain for proportional control is derived considering the optical dispersion and the disturbances. Some experiments are provided to illustrate that the optimal control gain is lower as the optical dispersion is higher.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2007/v24n4/OJOOBS_2007_v24n4_431.pdftelescopetracking controlCCD cameraautomatic control systeminstrumentation
collection DOAJ
language English
format Article
sources DOAJ
author Joon Hwa Lee
spellingShingle Joon Hwa Lee
Discrete Time Dynamic Model for Telescope Auto-Guiding System
Journal of Astronomy and Space Sciences
telescope
tracking control
CCD camera
automatic control system
instrumentation
author_facet Joon Hwa Lee
author_sort Joon Hwa Lee
title Discrete Time Dynamic Model for Telescope Auto-Guiding System
title_short Discrete Time Dynamic Model for Telescope Auto-Guiding System
title_full Discrete Time Dynamic Model for Telescope Auto-Guiding System
title_fullStr Discrete Time Dynamic Model for Telescope Auto-Guiding System
title_full_unstemmed Discrete Time Dynamic Model for Telescope Auto-Guiding System
title_sort discrete time dynamic model for telescope auto-guiding system
publisher Korean Space Science Society (KSSS)
series Journal of Astronomy and Space Sciences
issn 2093-5587
2093-1409
publishDate 2007-12-01
description In the auto-guiding system for obtaining a long exposure astrophotography, CCD camera is usually used for measuring guide errors which are affected by optical dispersion and mechanical disturbances. In this paper, a discrete time dynamic model and a performance index are proposed for analysing the auto-guiding system. The optimal gain for proportional control is derived considering the optical dispersion and the disturbances. Some experiments are provided to illustrate that the optimal control gain is lower as the optical dispersion is higher.
topic telescope
tracking control
CCD camera
automatic control system
instrumentation
url http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2007/v24n4/OJOOBS_2007_v24n4_431.pdf
work_keys_str_mv AT joonhwalee discretetimedynamicmodelfortelescopeautoguidingsystem
_version_ 1725838392109826048

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