Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2001.11b
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- Pages.1166-1171
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- 2001
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- 1598-2548(pISSN)
Disturbance estimation of optical disc by closed loop output estimator
페루프 외란 검출기를 통한 광디스크 외란 측정
- Park, Jin-Young (Center for Information Storage Center, Yonsei Uni) ;
- Chun, Chan-Ho (Center for Information Storage Center, Yonsei Un) ;
- Jun, Hong-Gul (Center for Information Storage Center, Yonsei Un) ;
- Lee, Moon-Noh (Dong-Eui Univ. Department of Computer Eng) ;
- Hyunseok Yang (Yonsei Univ. Department of Mechanical Eng) ;
- Park, Young-Pil (Yonsei Univ. Department of Mechanical Eng.)
- Published : 2001.11.01
Abstract
The method for output disturbance estimation is proposed. In this method, output disturbance is estimated from the closed loop system dynamics using the output and control input signals. In the closed-loop output-disturbance estimator, precise system identification is required to reduce estimation error. The realization of estimator was done by the DSP board (DSPl103), and disturbance estimation in various environments was performed： change of rotation speed, media feature and spindle motor with (or without) auto-ball balancing system (ABS). From these experiments, the disturbance characteristics of ODD under various conditions are analyzed, and the desirable servo loop configuration based these results is proposed.
Keywords