Applications of a new simulation model for media noise limited magnetic recording channels

Author

Caroselli, Joe ; Wolf, Jack Keil

Author_Institution

Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

3917

Lastpage

3919

Abstract

A new model for the signal dependent transition noise and partial erasure which occur in the readback signal from thin film recording media is reviewed. This model, which is referred to as the microtrack model, has its basis in physics and can be entirely specified by three parameters of the media. It is used both as a simulation tool and for analytical calculation. Through simulation, the effect of various amounts of media noise on a PR4 channel is shown. Analytically, the amount of jitter and widening effects of the noise produced by the model are examined. Also, the autocorrelation of this noise and the effect of partial erasure on it is examined

Keywords

magnetic disc storage; magnetic recording noise; magnetic thin film devices; partial response channels; PR4 channel; autocorrelation; magnetic recording channels; media noise limitations; microtrack model; partial erasure; readback signal; signal dependent transition noise; simulation model; simulation tool; thin film recording media; widening effects; Analytical models; Circuit noise; Error analysis; Magnetic analysis; Magnetic materials; Magnetic noise; Magnetic recording; Magnetization; Physics; Statistics;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.539216

Filename

539216