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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| Format: | Article |
| Language: | English |
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The Korean Space Science Society
2007-12-01
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| Series: | Journal of Astronomy and Space Sciences |
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| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2007/v24n4/OJOOBS_2007_v24n4_431.pdf |
| _version_ | 1827394126537031680 |
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| author | Joon Hwa Lee |
| author_facet | Joon Hwa Lee |
| author_sort | Joon Hwa Lee |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-08T18:02:44Z |
| format | Article |
| id | doaj.art-c2935d50ddaa4b7dbacf922f4c6db632 |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T18:02:44Z |
| publishDate | 2007-12-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-c2935d50ddaa4b7dbacf922f4c6db6322024-01-02T00:41:35ZengThe Korean Space Science SocietyJournal 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 |
| 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 |
| title | 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_short | Discrete Time Dynamic Model for Telescope Auto-Guiding System |
| title_sort | discrete time dynamic model for telescope auto guiding system |
| 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 |