MTR coded PRML systems for perpendicular magnetic recording

Yoshihiro Okamoto, Mitsuteru Sato, Hisashi Osawa, Hidetoshi Saito, Hiroaki Muraoka, Yoshihisa Nakamura

Research output: Contribution to journalConference articlepeer-review


A study on the maximum transition run (MTR) coded partial response maximum likelihood (PRML) for perpendicular magnetic recording was performed. The bit error rate (BER) performance of various MTR coded PRML systems were evaluated using computer simulation. The polynomials with only positive coefficients in a perpendicular magnetic recording channel using a double-layered medium with jitter-like noise were used to characterize the various MTR coded PRML systems. The 3/4MTR coded higher order PRML systems were observed to exhibit better performance in comparison with 16/17MTR coded PRML systems at low power ratios.

Original languageEnglish
Pages (from-to)465-469
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Issue number1-3
Publication statusPublished - 2001 Oct
EventProceedings of the 5th Perpendicular Magnetic Recording Conference (PMRC 2000) - Sendai, Japan
Duration: 2000 Oct 232000 Oct 26


  • Jitter-like noise
  • MTR code
  • PRML system
  • Perpendicular magnetic recording

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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