Spectral analysis of maximum entropy multitrack modulation codes

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8 Scopus citations

Abstract

In this correspondence the problem of calculating the power spectral density of a constrained maxentropic vector sequence {a(n)}, a(n) = [ai(n)]0<i<N - 1, is considered. The constraints of the constituent sequences {ai(n)}are defined by the soflc systems Si presented by the directed graphs Gi, 0 < i < N - 1, but the vector sequence itself is constrained additionally, and given by a function φ of constituent graphs (G = φ(G0, ⋯, GN-1)). This class of vector constraints is met in parallel multitrack recording. The general case of a simultaneous recording on N tracks is considered, assuming that the common vector constraint is track-invariant.

Original languageEnglish (US)
Pages (from-to)1574-1587
Number of pages14
JournalIEEE Transactions on Information Theory
Volume44
Issue number4
DOIs
StatePublished - Dec 1 1998
Externally publishedYes

Keywords

  • Input-constrained discrete channels
  • Maxentropic sequences spectral analysis
  • Soflc systems

ASJC Scopus subject areas

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences

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