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Design of a robust track-following controller for optical disk drives

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3 Author(s)
Moon-Noh Lee ; Dept. of Comput. Eng., Dong-Eui Univ., Busan, South Korea ; Kyoung Bog Jin ; Jong Keuk Lee

In this paper, we design a robust track-following controller that satisfies the transient response specifications and diminishes the influence of sinusoidal disturbance. To this end, a robust control problem with the multiple constraints is considered. We show that a sufficient condition satisfying the multiple constraints can be expressed by linear matrix inequalities. Finally, the robust track-following controller can be designed by solving an LMI optimization problem. The effectiveness of the proposed controller design method is verified though experiments.

Published in:

IEEE Transactions on Consumer Electronics  (Volume:50 ,  Issue: 2 )