Adaptive disturbance rejection in the presence of uncertain resonance mode in hard disk drives-Reference-Cited by-同舟云学术

Adaptive disturbance rejection in the presence of uncertain resonance mode in hard disk drives

Published:2009-09-08 Issue:2 Volume:32 Page:99-119
ISSN:0142-3312
Container-title:Transactions of the Institute of Measurement and Control
language:en
Short-container-title:Transactions of the Institute of Measurement and Control

Author:

Hong F.¹,Du C.²,Tee K.P.²,Ge S.S.²

Affiliation:

1. Data Storage Institute, A*STAR, Singapore,

2. Data Storage Institute, A*STAR, Singapore

Abstract

An adaptive on-line scheme is designed to identify the uncertain and time-varying resonance modes in hard disk drive servo systems. Based on the identified results, the uncertain resonance mode is extracted and a peak filter is designed accordingly to provide stronger capability of disturbance suppression. The scheme does not require any extra excitation signal or additional signal processing for the parameter identification. Compared with the conventional method, the rates of learning and error convergence are increased dramatically. The scheme can provide good stability margin at high frequency to the variation of the resonance frequency and the peak gain. Simulation results show the validity and effectiveness of the proposed scheme.

Publisher

SAGE Publications

Subject

Instrumentation

Link

http://journals.sagepub.com/doi/pdf/10.1177/0142331209339845

Reference21 articles.

1. Head-Positioning Control Using Virtual Resonant Modes in a Hard Disk Drive

2. $H_2$ Control for Head Positioning in Axial and Radial Dimensions for Self-Servo Track Writing

3. Adaptive Approximation Based Control

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