Title :
Precompensation value determination in a PRML channel
Author :
Tang, Y. ; Galbraith, R.L. ; Coker, J.D. ; Arnett, P.C. ; Wood, R.W.
Author_Institution :
Western Digital Corp., Santa Clara, CA, USA
fDate :
5/1/1996 12:00:00 AM
Abstract :
This paper describes a technique for determining precomp value in a disk drive with a PRML data channel. Unlike other known methods, this approach uses the PRML sample values to derive the needed precomp value and requires very little additional hardware. Therefore a disk drive can easily incorporate this technique for precomp adjustment
Keywords :
digital magnetic recording; error compensation; magnetic disc storage; maximum likelihood detection; partial response channels; PRML data channel; disk drive; magnetic recording; nonlinear bit shift; precompensation value; Band pass filters; Correlation; Detectors; Disk drives; Hardware; Kernel; Magnetic recording; Position measurement; Proximity effect; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
