DocumentCode
1245026
Title
A window-margin-like procedure for evaluating PRML channel performance
Author
Perkins, T. ; Keirn, Z.A.
Author_Institution
Appl. Magnetics Corp., Goleta, CA, USA
Volume
31
Issue
2
fYear
1995
fDate
3/1/1995 12:00:00 AM
Firstpage
1109
Lastpage
1114
Abstract
A procedure for rapidly evaluating the error rate performance of PRML channels is derived. The procedure, Sequenced Amplitude Margin (SAM), is a direct analogy to window margin techniques that are used for evaluating peak detection channels. SAM is computed from amplitude sampling errors, while window margin is a function of peak timing errors. Examples of the use of SAM to optimize filters, evaluate off-track performance, and compare PR4 with E/sup 2/PR4 systems are described.<>
Keywords
magnetic recording; maximum likelihood detection; partial response channels; signal sampling; PRML channel performance; amplitude sampling errors; error rate performance; off-track performance; peak timing errors; sequenced amplitude margin; window-margin-like procedure; Detectors; Error analysis; Error correction; Filters; Magnetics; Sampling methods; Timing;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.364793
Filename
364793
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