By Topic

Single-head/single-track detection in interfering tracks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Bong Gyun Roh ; Sch. of Electr. Eng., Seoul Nat. Univ., South Korea ; Sang Uk Lee ; Jaekyun Moon ; Ying Chen

Off-track interference (OTI) arises as a result of head misalignment and is likely to become the dominant source of errors in future magnetic storage systems with high track density. In this paper, using a two-track and single-head model for OTI, we compare two different equalization/detection techniques aiming at recovering data from only the main track. One is a conventional approach based on suppressing OTI by a linear equalizer and then performing partial response maximum-likelihood (PRML) detection of the main track data. The other views OTI as the response of the channel to an independent data sequence, simultaneously estimates the two data sequences by joint PRML detection, and then simply discards the adjacent track data at the end. We evaluate the detection performance in terms of effective detection signal-to-noise ratio, and provide bit-error-rate simulation results. We also discuss a technique to adaptively estimate the position of the head as well as compensate for the relative phase difference in the offtrack data

Published in:

Magnetics, IEEE Transactions on  (Volume:38 ,  Issue: 4 )