Modeling the Lorentzian magnetic recording channel with transition noise

Author

Oenning, Travis ; Moon, Jaekyun

Author_Institution

Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA

Volume

37

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

583

Lastpage

591

Abstract

This paper derives closed-form expressions for modeling a magnetic recording channel with transition noise. The closed-form expressions assume matched filtering, a Lorentzian transition response, and a first-order position jitter and width variation model. The result is a model that is straightforward and easy to use for simulation and analytical purposes. From the model, equations are derived for partial response targets of constrained length that minimize mean squared error in the presence of transition noise. Simulation results for the resulting targets in various transition noise environments are also included, along with a discussion of the results

Keywords

jitter; least mean squares methods; magnetic recording noise; matched filters; partial response channels; Lorentzian magnetic recording channel modeling; Lorentzian transition response; closed-form expressions; constrained length; discrete-time channel model; first-order position jitter model; fractional coefficient partial response targets; matched filtering; mean squared error minimization; partial response targets; simulation; transition noise; width variation model; Analytical models; Closed-form solution; Filtering; Jitter; Magnetic analysis; Magnetic noise; Magnetic recording; Magnetic separation; Matched filters; Working environment noise;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.914382

Filename

914382