Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMAG.2013.2252460
Title: Aliased narrow-band disturbance rejection using phase-stabilization above nyquist frequency
Authors: Tan, Y.Z.
Pang, C.K. 
Hong, F.
Lee, T.H. 
Keywords: Above Nyquist frequency
aliasing
disturbance rejection
elliptical transform
out-of-phase
phase-stabilization
Issue Date: 2013
Source: 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
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