Please use this identifier to cite or link to this item: https://doi.org/10.1109/TIE.2002.807254
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dc.titleA gradient-based track-following controller optimization for hard disk drive
dc.contributor.authorHao, Q.
dc.contributor.authorChen, R.
dc.contributor.authorGuo, G.
dc.contributor.authorChen, S.
dc.contributor.authorLow, T.S.
dc.date.accessioned2014-10-07T04:22:41Z
dc.date.available2014-10-07T04:22:41Z
dc.date.issued2003-02
dc.identifier.citationHao, Q., Chen, R., Guo, G., Chen, S., Low, T.S. (2003-02). A gradient-based track-following controller optimization for hard disk drive. IEEE Transactions on Industrial Electronics 50 (1) : 108-115. ScholarBank@NUS Repository. https://doi.org/10.1109/TIE.2002.807254
dc.identifier.issn02780046
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/81871
dc.description.abstractThis paper presents a gradient-based parameter optimization method to find the optimal compensator that minimizes the standard deviation (σPES) of the position error signal (PES) in a hard disk drive servo system. By using the plant response data and the PES gradient information based on the nominal plant model, optimal digital controllers that minimized the 3σPES of a plant with uncertainty were selected within a pre-found robust stable region. As a result, an optimal track-following controller that minimized the standard deviation of the measured PES (σPESm) was able to be obtained without the prior knowledge of the disturbance and noise model. Furthermore, we proved that if the measurement noise is white, an optimal controller that minimizes the 3σPESm also minimizes the 3σPES. Both simulation and implementation results suggest that such a gradient-based search process is faster than nongradient optimization methods such as Random Neighborhood Search and genetic algorithms.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/TIE.2002.807254
dc.sourceScopus
dc.subjectGradient method
dc.subjectHard disk drive (HDD) servo
dc.subjectOptimization
dc.subjectTrack mis-registration (TMR)
dc.typeArticle
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.contributor.departmentDATA STORAGE INSTITUTE
dc.description.doi10.1109/TIE.2002.807254
dc.description.sourcetitleIEEE Transactions on Industrial Electronics
dc.description.volume50
dc.description.issue1
dc.description.page108-115
dc.description.codenITIED
dc.identifier.isiut000180713800013
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