Please use this identifier to cite or link to this item: https://doi.org/10.1049/iet-cta.2008.0317
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dc.titleH∞ disturbance observer design for high precision track following in hard disk drives
dc.contributor.authorThum, C.K.
dc.contributor.authorDu, C.
dc.contributor.authorLewis, F.L.
dc.contributor.authorChen, B.M.
dc.contributor.authorOng, E.H.
dc.date.accessioned2014-10-07T04:29:25Z
dc.date.available2014-10-07T04:29:25Z
dc.date.issued2009
dc.identifier.citationThum, C.K., Du, C., Lewis, F.L., Chen, B.M., Ong, E.H. (2009). H∞ disturbance observer design for high precision track following in hard disk drives. IET Control Theory and Applications 3 (12) : 1591-1598. ScholarBank@NUS Repository. https://doi.org/10.1049/iet-cta.2008.0317
dc.identifier.issn17518644
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/82440
dc.description.abstractContrary to the conventional method of disturbance observers (DOB) where Q-filter is designed to be a low-pass filter with unity DC gain, the optimal H∞ method has been proposed to design the Q-filter and applied in the servo control system of hard disk drives in track following. Simulation and implementation results have shown that the resultant H∞ DOB improves low-frequency disturbance attenuation without compromising the disturbances attenuation performance at higher frequency region achieved by the nominal feedback controller. In terms of track-following precision, the proposed method is approximately 5 more accurate than the conventional method. © The Institution of Engineering and Technology 2009.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1049/iet-cta.2008.0317
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1049/iet-cta.2008.0317
dc.description.sourcetitleIET Control Theory and Applications
dc.description.volume3
dc.description.issue12
dc.description.page1591-1598
dc.identifier.isiut000272596800004
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