Puttarak, Nattakan

Loading...
Thumbnail Image
Preferred name
Puttarak, Nattakan
Alternative Name
Puttarak, N.
Main Affiliation
Email
nattakan.pu@kmitl.ac.th

Settings

Now showing 1 - 1 of 1
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Reduced-nonlinear effect on magnetic recording channels using MMSE equalizer
    (2015-01-01)
    Sirirungsakulwong, A.
    ;
    Puttarak, N.
    ;
    Supnithi, P.
    This paper considers the nonlinear effect on magnetic recording channels in order to reduce the system distortion. We propose the designed minimum-mean square error (MMSE) equalizer and targets for a high density perpendicular magnetic recording to combat the nonlinear transition shift (NLTS) in a channel characterized by jitter noise and additive white Gaussian noise (AWGN). Due to the complex nature of nonlinear effects, the nonlinearity of a read-back signal is modeled by the second order Volterra model consisting of linear and nonlinear parts. The bit-error rate (BER) of the nonlinear-affected system using the designed MMSE equalizer is significantly decreased. The results show that the proposed MMSE equalizer with g<inf>t</inf>=1 constraint can decrease the inter-symbol interference (ISI) that causes nonlinearity and also improves a system performance.