Improved TMR budget through a frequency shaped servo design

Author

Chang, J-K. ; Weerasooriya, S. ; Ho, Hai T.

Author_Institution

Data Storage Inst., Singapore

Volume

1

fYear

1997

fDate

9-14 Nov 1997

Firstpage

47

Abstract

This paper introduces a method of establishing disturbances and measurement noise power spectra from the position error signal (PES) and presents a discrete-time linear-quadratic Gaussian/loop-transfer recovery (LQG/LTR) design technique for a disk drive track following servo system. Having the knowledge of these noise power spectra, a controller can be designed to minimize the energy corresponding to the actual read/write (R/W) head position

Keywords

control system synthesis; discrete time systems; linear quadratic Gaussian control; magnetic disc storage; position control; servomechanisms; discrete-time linear-quadratic Gaussian/loop-transfer recovery control; disk drive track following servo system; disturbance power spectra; frequency-shaped servo design; measurement noise power spectra; position error signal; read/write head position; track misregistration; Disk drives; Frequency; Gaussian noise; Noise measurement; Noise shaping; Position measurement; Power measurement; Servomechanisms; Signal design; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control and Instrumentation, 1997. IECON 97. 23rd International Conference on

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-3932-0

Type

conf

DOI

10.1109/IECON.1997.671019

Filename

671019