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Proceedings Paper

Analysis of HDD thin-film-head read channel performance as a function of media thickness and RLL code d constraint
Author(s): William G. Bliss; David E. Reed
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Paper Abstract

The performances of various data detectors, including the maximum likelihood sequence detector (MLSD), are analyzed as a function of media thickness and run-length limited (RLL) code d-constraint. The analysis includes the variation of pulse width and magnetic transition width with media thickness. Performance is calculated in the presence of non-linear partial erasure, or transition amplitude reduction, which changes with media thickness. The RLL code d-constraint effects the media non-linearity and detector processing gain. The results presented predict an optimum media thickness for a given detector and show the relative performance of different detectors and RLL d-constraints.

Paper Details

Date Published: 8 December 1995
PDF: 12 pages
Proc. SPIE 2605, Coding and Signal Processing for Information Storage, (8 December 1995); doi: 10.1117/12.228237
Show Author Affiliations
William G. Bliss, Cirrus Logic, Inc. (United States)
David E. Reed, Cirrus Logic, Inc. (United States)

Published in SPIE Proceedings Vol. 2605:
Coding and Signal Processing for Information Storage
Raghuveer M. Rao; Soheil A. Dianat; Steven W. McLaughlin; Martin Hassner, Editor(s)

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