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|Title:||Channel modeling and target design for two-dimensional optical storage systems|
Two-dimensional optical storage
|Citation:||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|
|Appears in Collections:||Staff Publications|
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