Hardware emulation of multi-level decision feedback equalization

The bit error rate (BER) performance of a multi-level decision feedback equalizer (MDFE) for a magnetic recording channel is evaluated. The unique equalization scheme designed for 2/3(1,7) RLL codes was emulated on the RAM-DFE IC. Measurements with a synchronous clock at 54 Msps demonstrated that ra...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 32; no. 5; pp. 3947 - 3949
Main Authors Schmid, V., Sands, N.P.
Format Journal Article
LanguageEnglish
Published IEEE 01.09.1996
Subjects
Bit error rate
Clocks
Decision feedback equalizers
Emulation
Finite impulse response filter
Hardware
Intersymbol interference
Magnetic heads
Magnetic recording
Nonlinear filters
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Summary:The bit error rate (BER) performance of a multi-level decision feedback equalizer (MDFE) for a magnetic recording channel is evaluated. The unique equalization scheme designed for 2/3(1,7) RLL codes was emulated on the RAM-DFE IC. Measurements with a synchronous clock at 54 Msps demonstrated that raising the inner target levels improves the performance considerably. It was found that MDFE outperforms conventional DFE at the same symbol density of PW50=2.5 T and yields similar performance at the same user density of 1.78.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9464
1941-0069
DOI:10.1109/20.539226