The channel constraints for the Partial-Response Maximum-Likelihood (PRML) channel are represented by parameters (d,k/k(sub1) whre d and k represent the minimum and maximum run lengths of zeros in the overall binary sequence and k(sub1) represents the maximum run length of zeros in the subsequence of all-odd or all-even digit positions. The minimum run length d isusually zero in case of the partial-response class IV channel. The corresponding code is called (d,k/k(sub1)) PRML code. In this paper, we present highly structured design and simple implementation of the (0,3/6) and (0,3/5) PRML codes.
By: Arvind Patel (IBM San Jose), Brian Marcus and Paul Siegel
Published in: RJ4583 in 1985
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