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|Title:||Aliased narrow-band disturbance rejection using phase-stabilization above nyquist frequency||Authors:||Tan, Y.Z.
|Keywords:||Above Nyquist frequency
|Issue Date:||2013||Citation:||Tan, Y.Z., Pang, C.K., Hong, F., Lee, T.H. (2013). Aliased narrow-band disturbance rejection using phase-stabilization above nyquist frequency. IEEE Transactions on Magnetics 49 (6) : 2693-2696. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2013.2252460||Abstract:||Lightly damped resonant modes at above the Nyquist frequency which are not phase-stabilized result in aliased narrow-band disturbances. In this paper, an elliptical transformation-based scheme is proposed for phase-stabilization of resonant modes at above the Nyquist frequency. Our experimental results on the Pb-Zr-Ti active suspension in a commercial 3.5′′ dual-stage hard disk drive show that narrow-band disturbances are suppressed without large spillover effects at an aliased resonant mode at 4.23 kHz, which is in close proximity with an out-of-phase resonant mode at 3.50 kHz. © 1965-2012 IEEE.||Source Title:||IEEE Transactions on Magnetics||URI:||http://scholarbank.nus.edu.sg/handle/10635/54963||ISSN:||00189464||DOI:||10.1109/TMAG.2013.2252460|
|Appears in Collections:||Staff Publications|
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