Two-Stage Feedforward Tracking Control System with Error-Based Disturbance Observer for Optical Discs

被引：1

作者：

Sakimura, Naohide ^{[1
]}

Ohashi, Takahiro ^{[1
]}

Ohishi, Kiyoshi ^{[1
]}

Miyazaki, Toshimasa ^{[1
]}

机构：

[1] Nagaoka Univ Technol, Dept Elect Engn, Nagaoka, Niigata 9402188, Japan

来源：

OPTICAL REVIEW | 2014年 / 21卷 / 05期

基金：

日本学术振兴会;

关键词：

optical disc; two-stage feedforward control; error-based disturbance observer; SERVO SYSTEM; BROADCAST-USE; DRIVE; PERFORMANCE; DISKS; IMPROVEMENT; RPM;

D O I：

10.1007/s10043-014-0092-z

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Recently, the scaling up of the storage capacity and data transfer rate of digital storage media has been required. However, increasing in the storage capacity and transfer rate makes optical head control more difficult. Thus, a tracking control system for optical discs must exhibit a high degree of precision control. Consequently, a new two-stage feedforward control (TSFFC) system for high-precision control is proposed in this paper. The proposed system is constructed using two zero phase error tracking (ZPET) control systems based on error prediction and an error-based disturbance observer (EDOB) that uses a notch filter to suppress non periodic disturbances. The proposed control system is designed for DDU-1000 for digital versatile discs (DVDs). The experimental results demonstrate that the proposed system effectively suppresses tracking errors. (C) 2014 The Japan Society of Applied Physics

引用

页码：578 / 584

页数：7

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