Title :
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
fDate :
9/1/1999 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
