Improvement of the Disturbance Suppression Control Method for Car-mounted and Portable Optical Disk Drive Proposed by Yokoyama and Others

Abstract

In the disturbance suppression control method for car-mounted and portable optical disk drive proposed by Yokoyama and others, the use of actuator position sensor is always necessary. In this paper, an improved method, in which the expensive actuator position sensor is useless, is proposed for the same purpose.