Performance evaluation of MDFE with a simplified feedforward filter

Author

Kato, Takatoshi ; Kimura, Hiroshi ; Nara, Takashi ; Nishiya, Takushi

Author_Institution

Syst. Dev. Lab., Hitachi Ltd., Yokohama, Japan

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

2286

Lastpage

2288

Abstract

We describe a new robust feedforward filter (FFF) for multi-level decision feedback equalization (MDFE) which has only four poles and one zero. This FFF has low complexity and low power consumption. We evaluate the performance degradation caused by the dispersion of the FFF. With updating the feedback filter (FBF), there is a 0.2-dB loss or less in the required SNR, even though the Qs or pole frequencies are degraded within +/-10%

Keywords

continuous time filters; decision feedback equalisers; feedforward; magnetic recording; performance evaluation; poles and zeros; MDFE; SNR; continous time filter; dispersion; low complexity; low power consumption; magnetic recording; multi-level decision feedback equalization; performance degradation; performance evaluation; pole frequencies; robust feedforward filter; simplified feedforward filter; Bit error rate; Decision feedback equalizers; Degradation; Energy consumption; Field-flow fractionation; Finite impulse response filter; Frequency; Magnetic recording; Magnetic separation; Poles and zeros;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800801

Filename

800801