Error event characterization of partial response systems in magnetic recording systems with medium noise

Author

Caroselli, Joe ; Wolf, Jack Keil

Author_Institution

Quantum Corp., Milpitas, CA, USA

Volume

5

fYear

1998

fDate

1998

Firstpage

2724

Abstract

The effective distance (d_eff) of error events for partial response maximum likelihood (PRML) systems in magnetic recording channels are calculated using a realistic model for medium noise. The presence of medium noise has a strong negative impact on the minimum effective distances. The effective distances and the hierarchy of error events depend on the characteristics of the noise. In addition, due to the data dependency of medium noise, each error event corresponds to a range of d_eff depending upon which data pattern was transmitted

Keywords

Viterbi detection; digital magnetic recording; magnetic recording noise; maximum likelihood detection; partial response channels; PRML systems; effective distance; error event characterization; magnetic recording channels; medium noise; partial response maximum likelihood systems; Detectors; Equalizers; Euclidean distance; Gaussian noise; Giant magnetoresistance; Magnetic noise; Magnetic recording; Maximum likelihood detection; Performance analysis; White noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE

Conference_Location

Sydney,NSW

Print_ISBN

0-7803-4984-9

Type

conf

DOI

10.1109/GLOCOM.1998.776483

Filename

776483