• DocumentCode
    1075723
  • Title

    Turbo-PRML: a compromise EPRML detector

  • Author

    Wood, Roger

  • Author_Institution
    IBM AdStar, San Jose, CA, USA
  • Volume
    29
  • Issue
    6
  • fYear
    1993
  • fDate
    11/1/1993 12:00:00 AM
  • Firstpage
    4018
  • Lastpage
    4020
  • Abstract
    Extended partial-response maximum-likelihood (EPRML) detection outperforms PRML on very high density magnetic recording channels. However, EPRML detection is much more complex than PRML and is difficult to implement at high data rates. Turbo-PRML is a compromise EPRML detector which comprises a conventional PRML detector plus a digital circuit operating on the PRML outputs. A bit-by-bit simulation is presented that confirms the expected performance gains over PRML
  • Keywords
    magnetic recording; maximum likelihood estimation; signal detection; EPRML detector; bit-by-bit simulation; digital circuit; extended partial response maximum likelihood detection; high density magnetic recording channels; signal to noise ratio; turbo PRML; Adders; Circuit simulation; Detectors; Digital circuits; Disk drives; Disk recording; Magnetic recording; Maximum likelihood detection; Performance gain; Timing;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.281375
  • Filename
    281375