Please use this identifier to cite or link to this item: https://doi.org/10.1002/acs.990
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dc.titleH∞ compensation of external vibration impact on servo performance of hard disk drives in mobile applications
dc.contributor.authorDu, C.
dc.contributor.authorGe, S.S.
dc.contributor.authorLewis, F.L.
dc.date.accessioned2014-10-07T04:29:25Z
dc.date.available2014-10-07T04:29:25Z
dc.date.issued2008-05
dc.identifier.citationDu, C., Ge, S.S., Lewis, F.L. (2008-05). H∞ compensation of external vibration impact on servo performance of hard disk drives in mobile applications. International Journal of Adaptive Control and Signal Processing 22 (4) : 374-387. ScholarBank@NUS Repository. https://doi.org/10.1002/acs.990
dc.identifier.issn08906327
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/82439
dc.description.abstractH∞ compensation for external vibration impact on the positioning accuracy of hard disk drives is considered in this paper. A feedforward controller is designed to attenuate the impact with the aid of a sensor to detect external vibrations. Loop shaping in frequency domain and H∞ method in state space are used to design the feedforward controller. The linear matrix inequality approach is adopted for solving the H∞ feedforward control design problem. The application results in a 1.8-in disk drive with an accelerometer to measure acceleration signal show that 97% reduction of the position error signal is achieved with the feedforward control designed by the H∞ method. The effectiveness of the two methods is also evaluated and compared when external vibration model is subjected to gain variations. Copyright © 2007 John Wiley & Sons, Ltd.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1002/acs.990
dc.sourceScopus
dc.subjectAcceleration feedforward
dc.subjectExternal vibration compensation
dc.subjectH∞ control
dc.subjectHard disk drives
dc.subjectLinear matrix inequality
dc.subjectServo control
dc.typeArticle
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1002/acs.990
dc.description.sourcetitleInternational Journal of Adaptive Control and Signal Processing
dc.description.volume22
dc.description.issue4
dc.description.page374-387
dc.description.codenIACPE
dc.identifier.isiut000256285700005
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