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A Robust Fine Seek Controller Design Method Based on the Estimation of Velocity Disturbance  

Lee, Moon-Noh (Department of Computer Engineering, Dong-Eui University)
Shin, Jin-Ho (Department of Mechatronics Engineering, Dong-Eui University)
Kim, Seong-Woo (Department of Computer Software Engineering, Dong-Eui University)
Lee, Jong-Min (Department of Computer Software Engineering, Dong-Eui University)
Jin, Kyoung-Bog (School of Mechatronics Engineering, Korea University of Technology and Education)
Publication Information
International Journal of Control, Automation, and Systems / v.5, no.3, 2007 , pp. 243-250 More about this Journal
Abstract
This paper presents a systematic method of estimating a velocity disturbance occurring in the fine seek control system of an optical disk drive. A fine seek loop gain adjustment algorithm is introduced to accurately estimate the velocity disturbance in spite of the uncertainties of the fine actuator. The velocity disturbance can be estimated from a measurable velocity, a fine seek controller output, and a compensated fine actuator model. A robust fine seek controller can be designed by considering a minimum fine seek open-loop gain, calculated by the estimated velocity disturbance. The proposed controller design method is applied to the fine seek control system of a DVD rewritable drive and is evaluated through the experimental results.
Keywords
Fine seek loop gain adjustment; minimum fine seek open-loop gain; optical disk drive; velocity disturbance; weighting function;
Citations & Related Records

Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
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1 M. Suzuki, H. Tanaka, and Y. Miura, 'Pull-in condition and method of tracking servo in optical disk drive,' J. Inst. Television Jpn, vol. 44, no. 10,pp. 1391-1397, 1990   DOI
2 J. D. Yang, L. F. Pan, X. D. Pei, and C. S. Xie, 'Time optimal seek control for a coupled dual stage disk drive actuator,' IEEE Trans. on Magnetics, vol. 33, no. 5, pp. 2629-2631,1997   DOI   ScienceOn
3 M.-N. Lee, J.-H. Moon, K. B. Jin, and M. J. Chung, 'Robust H co control with multiple constraints for the track-following system of an optical disk drive,' IEEE Trans. Indus. Electr., vol. 45, no. 4, pp. 638-645, 1998   DOI   ScienceOn
4 K. B. Jin and M.-N. Lee, 'Vibration control technology of an optical disk drive,' Journal of KSNVE, vol. 13, no. 1, pp. 48-55, 2003   DOI
5 K. B. Jin, H. K. Lee, and M. J. Chung, 'Direct seek control scheme for high-speed rotational optical disk drives,' Electronics Letters, vol. 34, no. 15, pp. 1476-1477, 1998   DOI   ScienceOn
6 J. C. Doyle, B. A. Francis, and A. M. Tannenbaum, Feedback Control Theory, Macmillan, New York, 1992
7 K. Suzuki, H. Tanaka, M. Miura, Y. Suzuki, and M. Mori, 'Advanced direct seeking system for 5.25' magneto optical disk drive,' J Appl. Phys., vol. 32, no. 11B, pp. 5371-5375, 1993   DOI
8 J.- Y. Choi, H.-G. Jun, C.-H. Chun, M.-N. Lee, H.-S. Yang, and Y.-P. Park, 'Disturbance measurement of optical disc and servo loop design related to its result,' Proc. of International Conference on Motion and Vibration Control, pp. 326-332, 2002
9 J. Yang, L. Pan, X. Pei, and D. Xu, 'Twoactuator cooperative seek control for optical disk drives,' Proc. of the SPIE, vol. 3562, pp. 94-98, 1998
10 M. Zhou, K. C. Doyle, K. Glover, Robust and Optimal Control, Prentice-Hall, Inc., 1996
11 K. Koumura, F. Takizawa, T. Tsujisawa, and H. Inada, 'High speed accessing by direct accessing,' Japanese Journal of Applied Physics, vol. 28, pp. 73-76, 1989   DOI
12 K. B. Jin, T.-Y. Doh, J. R. Ryoo, and M. J. Chung, 'Robust direct seek control for highspeed rotational optical disk drives,' IEEE Trans. on Consumer Electronics, vol. 44, no. 4, pp. 1273-1283,1998   DOI   ScienceOn
13 M. Akiyama and J. Ishikawa, 'Repetitive track seeking algorithm for optical disk drives,' Japanese Journal of Applied Physics, vol. 32, no. 11,pp. 5392-5396,1993   DOI