Track squeeze using adaptive intertrack interference equalization

A new maximum likelihood sequence detection (MLSD) technique to reduce the effects of intertrack interference (ITI) is presented. As track densities increase, ITI and offtrack interference (OTI) occur and have detrimental effects on the performance of current MLSD decoders. A solution, described in...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2002-09, Vol.38 (5), p.2331-2333
Main Authors: Ahmed, M.Z., Davey, P.J., Donnelly, T., Clegg, W.W.
Format: Article
Language:English
Subjects:
Adaptive equalizers
Applied sciences
AWGN
Convergence
Crosstalk
Electronics
Exact sciences and technology
Finite impulse response filter
Interference
Least squares approximation
Magnetic and optical mass memories
Magnetism
Maximum likelihood decoding
Maximum likelihood detection
Other magnetic recording and storage devices (including tapes, disks, and drums)
Signal to noise ratio
Storage and reproduction of information
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Description
Summary:A new maximum likelihood sequence detection (MLSD) technique to reduce the effects of intertrack interference (ITI) is presented. As track densities increase, ITI and offtrack interference (OTI) occur and have detrimental effects on the performance of current MLSD decoders. A solution, described in this paper, is to perform MLSD with an adaptive ITI equalizer constructed within the decoder trellis.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2002.801896