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This note details a method for encoding arbitrary data sequences into two-dimensional arrays that satisfy certain constraints. Specifically, we outline a framework for constructing such codes, and we exhibit some codes that produce arrays with limited high spatial frequency content. These codes are useful for channels where high spatial frequencies of data may be distorted -- causing a smearing effect -- such as in a holographic recording system. We also make some general observations about encoding into two-dimensional constraints.
By: Jonathan J. Ashley and Brian H. Marcus
Published in: IEEE Transactions On Communications, volume 46, (no 6), pages 724-7 in 1998
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