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Methods for characterizing the replay pulse asymmetry for a digital magnetic recording channel

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1 Author(s)
M. K. Loze ; Dept. of Math. & Phys., Manchester Metropolitan Univ., UK

Two methods are examined for characterizing the asymmetric replay pulse from the digital magnetic recording channel. A time domain method based on the Taylor series expansion of a mixed longitudinal/perpendicular pulse model is used to obtain simple relationships between the replay pulse asymmetry and model parameters. A frequency domain method based on modelling the channel phase is used to characterize a simple longitudinal pulse model with linear displacement of the transition through the recording depth

Published in:

IEEE Transactions on Magnetics  (Volume:30 ,  Issue: 5 )