Browse > Article
http://dx.doi.org/10.5140/JASS.2007.24.4.431

DISCRETE TIME DYNAMIC MODEL FOR TELESCOPE AUTO-GUIDING SYSTEM  

Lee, Joon-Hwa (School of Electrical and Computer Engineering University of Seoul)
Publication Information
Journal of Astronomy and Space Sciences / v.24, no.4, 2007 , pp. 431-450 More about this Journal
Abstract
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.
Keywords
telescope; tracking control; CCD camera; automatic control system; instrumentation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 정웅섭, 이상각, 박수종 1999, 한국천문학논총, 14, 47
2 조승현, 진호, 남욱원, 차상목, 이성호, 육인수, 박영식, 박수종, 한원용, 김성수 2006, 한국천문학논총, 21, 67
3 Kemin, Z., John, D., & Keith, G. 1996, Robust and Optimal Control (New Jersey: Prentice Hall), pp.535-561
4 Richard, A. V. & Louis, F. K. 1967, IEEE-AC, 12, 359   DOI   ScienceOn
5 Wodek, G. 2007, IEEE-CST, 15, 276
6 Yaguang, Y, Nick, R., & Tim, C. 2002, IEEE-CST, 10, 149
7 문병식, 김상준, 장민환, 민상웅, 설경환, 문기석 2006, 한국천문학논총, 21, 81
8 윤요나, 이충욱, 차상목, 김용기 2006, 한국우주과학회지, 23, 143   과학기술학회마을   DOI