DocumentCode
852185
Title
Low complexity Viterbi detector for magnetic disc drives
Author
Gottfried, N.H.
Author_Institution
Tech. Univ. of Munich, Germany
Volume
140
Issue
1
fYear
1993
fDate
1/1/1993 12:00:00 AM
Firstpage
78
Lastpage
80
Abstract
A signal detection scheme for magnetic disc drives based on maximum likelihood sequence detection is proposed which refers to a channel with RLL 1, 7 coding and features a trellis with three states and five transitions. Owing to the RLL 1, 7 code, clock recovery is more stable than in partial response coded systems. The decoding gain amounts to 5 dB, and may lead to an increase in capacity by a factor of 1.8 when used for reading narrower tracks.
Keywords
decoding; encoding; magnetic disc storage; maximum likelihood estimation; signal detection; 5 dB; RLL 1, 7 coding; clock recovery; decoding gain; magnetic disc drives; maximum likelihood sequence detection; partial response coded systems;
fLanguage
English
Journal_Title
Computers and Digital Techniques, IEE Proceedings E
Publisher
iet
ISSN
0143-7062
Type
jour
Filename
193780
Link To Document