DocumentCode
1075723
Title
Turbo-PRML: a compromise EPRML detector
Author
Wood, Roger
Author_Institution
IBM AdStar, San Jose, CA, USA
Volume
29
Issue
6
fYear
1993
fDate
11/1/1993 12:00:00 AM
Firstpage
4018
Lastpage
4020
Abstract
Extended partial-response maximum-likelihood (EPRML) detection outperforms PRML on very high density magnetic recording channels. However, EPRML detection is much more complex than PRML and is difficult to implement at high data rates. Turbo-PRML is a compromise EPRML detector which comprises a conventional PRML detector plus a digital circuit operating on the PRML outputs. A bit-by-bit simulation is presented that confirms the expected performance gains over PRML
Keywords
magnetic recording; maximum likelihood estimation; signal detection; EPRML detector; bit-by-bit simulation; digital circuit; extended partial response maximum likelihood detection; high density magnetic recording channels; signal to noise ratio; turbo PRML; Adders; Circuit simulation; Detectors; Digital circuits; Disk drives; Disk recording; Magnetic recording; Maximum likelihood detection; Performance gain; Timing;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.281375
Filename
281375
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