A method for suppressing error propagation in (1,7) MDFE detectors

Author

Ueno, Hiroaki ; Sugawara, Takao ; Shimoda, Kaneyasu ; Mutoh, Hiroshi

Author_Institution

File Memory Lab., Fujitsu Labs. Ltd., Atsugi, Japan

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

2289

Lastpage

2291

Abstract

MDFE (multilevel decision feedback equalization) type detectors have been proposed for high recording densities and high data rates in magnetic recording. However, error propagation is a serious problem in all DFE approaches. In this paper, we present some solutions to the error propagation problem using existing signals with less complexity in MDFE and M3DFE detectors. We discuss the effectiveness of these suppression techniques with respect to simulation results and experimental results in the MDFE read channel. The results show that the methods can considerably suppress error propagation

Keywords

decision feedback equalisers; magnetic recording; signal detection; (1,7) MDFE detectors; M3DFE detectors; MDFE read channel; high data rates; high recording densities; magnetic recording; multilevel decision feedback equalization; simulation results; suppressing error propagation; Decision feedback equalizers; Detectors; Error analysis; Filters; Laboratories; Large scale integration; Magnetic noise; Magnetic recording; Output feedback; Writing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800802

Filename

800802