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HNILIČKA, B., BESANCON-VODA, A., FILARDI, G., SCHROEDER, H.
Original Title
Pole placement/sensitivity function shaping and controller order reduction in DVD players (Focus control loop)
Type
conference paper
Language
English
Original Abstract
The problem considered in this paper is the robust controller design for the focus control loop of DVD-video drive. For low-speed players, is known that this problem can be solved by means of simple lead-lag regulators. For high-speed players the disturbance rejection is more difficult problem than for CD players because of higher performance requirements. The control scheme proposed here is based on the design of robust digital controllers using the combined pole placement/sensitivity function shaping method to reduce the effect of repetitive disturbances. Controller order reduction is performed to allow its practical implementation. Experimental results, obtained on a real system in STMicroelectronics laboratories, illustrate the performance of the proposed algorithms for the focus control loop.
Keywords
DVD player; Focus loop; Robust control; Pole placement; Controller order reduction.
Authors
RIV year
2003
Released
1. 9. 2003
Location
Neuveden
Pages from
1
Pages to
6
Pages count
BibTex
@inproceedings{BUT8286, author="Bohumil {Hnilička} and Alina {Besancon-Voda} and Giampaolo {Filardi} and Heinz-Joerg {Schroeder}", title="Pole placement/sensitivity function shaping and controller order reduction in DVD players (Focus control loop)", booktitle="Proceedings of the European Control Conference 2003", year="2003", series="Neuveden", volume="Neuveden", number="Neuveden", pages="6", address="Neuveden" }