ADAPTIVE DISTURBANCE REPRESSING METHOD, COMPUTER-READABLE RECORDING MEDIUM, ADAPTIVE DISTURBANCE REPRESSING DEVICE, DISK DRIVE UNIT, AND DISK DRIVE UNIT CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide a novel and improved adaptive disturbance repressing method, minimizing the lowering of performance of a system caused by a disturbance, in consideration of the stability of the system depending on a using environment of the system, and a computer-readable recording medium, an adaptive disturbance repressing device, a disk drive unit, and a disk drive unit control method.;SOLUTION: This adaptive disturbance repressing method has a step for estimating one or more of disturbance frequency components applied to the system under a user environment, and a step for optimizing one or more of parameter values for determining a characteristic of a disturbance compensation servo control loop provided with a disturbance observer, based on the one or more of estimated disturbance frequency components.;COPYRIGHT: (C)2008,JPO&INPIT