Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMAG.2005.852212
Title: Channel modeling and target design for two-dimensional optical storage systems
Authors: Huang, L.
Mathew, G. 
Chong, T.C. 
Keywords: Hankel transform
Monic constraint
Target design
Two-dimensional optical storage
Issue Date: Aug-2005
Source: Huang, L., Mathew, G., Chong, T.C. (2005-08). Channel modeling and target design for two-dimensional optical storage systems. IEEE Transactions on Magnetics 41 (8) : 2414-2424. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2005.852212
Abstract: In this paper, we first show that the symbol response of the two-dimensional (2-D) optical storage (TwoDOS) channel can be computed by a one-dimensional (1-D) Hankel transform, instead of the 2-D Fourier transform. This results in a computationally efficient approach for generating readback signals in the presence of pit-size variations. We also show how to design a 2-D minimum mean-square error (MMSE) equalizer for channels with these distortions. Second, we present a novel way to jointly design equalizer and target under linear constraints on the target, by transforming the 2-D target design problem into a 1-D form. Using a 2-D Viterbi detector, we investigated different target constraints. The results show that the newly proposed "2-D monic constraint" is a reasonable target constraint for a TwoDOS system. © 2005 IEEE.
Source Title: IEEE Transactions on Magnetics
URI: http://scholarbank.nus.edu.sg/handle/10635/55262
ISSN: 00189464
DOI: 10.1109/TMAG.2005.852212
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