Perfect Tracking Control System with Prediction State Observer for Next-Generation Optical Disks

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概要

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• Recently, the capacity of optical disk recording systems has been increasing. Optical disk drive systems must realize high-precision tracking control. For this purpose, we previously proposed a tracking control system that is composed of both a robust feedback controller and a zero-phase-error feedforward tracking controller. The proposed feedforward tracking control system effectively suppresses the tracking error caused by track eccentricity. However, it is sometimes difficult for conventional feedforward tracking control systems to realize higher precision in their tracking control. Hence, in this paper we propose a new perfect tracking control (PTC) system with a prediction state observer for next-generation optical disks. The experimental results confirm that the proposed system suppresses the tracking error at a disk rotation speed of 8000 rpm. Therefore, the proposed system realizes high-precision tracking control.

• 2011-09-25

著者

• Ohishi Kiyoshi

  Department Of Electrical Engineering Nagaoka University Of Technology

• Koide Daiichi

  Science & Technical Research Laboratories Nhk (japan Broadcasting Corporation)

• Tokumaru Haruki

  Science & Technical Research Laboratories Nhk (japan Broadcasting Corporation)

• Miyazaki Toshimasa

  Department Of Electrical Engineering Nagaoka University Of Technology

• Sazawa Masaki

  Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan

• Koide Daiichi

  Science and Technology Research Laboratories, Japan Broadcasting Corporation, Setagaya, Tokyo 157-8510, Japan

• Ogata Tokoku

  Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan

• Nabata Yuta

  Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan

• Takano Yoshimichi

  Science and Technology Research Laboratories, Japan Broadcasting Corporation, Setagaya, Tokyo 157-8510, Japan

• Takano Yoshimichi

  Science and Technical Research Laboratories, Japan Broadcasting Corp. (NHK), 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan

• Miyazaki Toshimasa

  Department of Electrical and Electronic Systems Engineering, Nagaoka National College of Technology, Nagaoka, Niigata 940-8532, Japan

• Tokumaru Haruki

  Science and Technology Research Laboratories, Japan Broadcasting Corporation, Setagaya, Tokyo 157-8510, Japan

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