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Signal processing technologies for high-density digital magnetic recording.

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Titel: Signal processing technologies for high-density digital magnetic recording.
Autoren: Hisaki Osawa1, Yoshihiro Okamoto1, Hidetoshi Saito1
Quelle: Electronics & Communications in Japan, Part 2: Electronics. Jun99, Vol. 82 Issue 6, p25-45. 21p.
Schlagwörter: *SIGNAL processing, *MAGNETIC recorders & recording, *DIGITAL electronics, *CODING theory, *ESTIMATION theory, *ELECTRIC distortion
Abstract: Recently, the demand for higher density digital recording has been increasing steadily. In this article, focusing on digital magnetic recording devices, such as magnetic disks and digital VTRs, a signal processing technique for achieving higher densities is described. First, the partial response system, Viterbi decoding method, and partial response maximum likelihood (PRML) system are described in detail. Next, various signal processing methods extensively studied in recent years for longitudinal magnetic recording are described. Recent research trends in signal processing methods responsive to nonlinear distortions, with allowance for nonlinear distortions, such as partial erasure as factors promoting error rate degradation in high-density recording, are discussed. The performances of various methods are compared. A signal processing method for vertical magnetic recording expected to be a promising technique for future high density recording is described. ©1999 Scripta Technica, Electron Comm Jpn Pt 2, 82(6): 25–45, 1999 [ABSTRACT FROM AUTHOR]
Datenbank: Academic Search Index
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  Data: Signal processing technologies for high-density digital magnetic recording.
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  Data: <searchLink fieldCode="AR" term="%22Hisaki+Osawa%22">Hisaki Osawa</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yoshihiro+Okamoto%22">Yoshihiro Okamoto</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hidetoshi+Saito%22">Hidetoshi Saito</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Electronics+%26+Communications+in+Japan%2C+Part+2%3A+Electronics%22">Electronics & Communications in Japan, Part 2: Electronics</searchLink>. Jun99, Vol. 82 Issue 6, p25-45. 21p.
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  Data: *<searchLink fieldCode="DE" term="%22SIGNAL+processing%22">SIGNAL processing</searchLink><br />*<searchLink fieldCode="DE" term="%22MAGNETIC+recorders+%26+recording%22">MAGNETIC recorders & recording</searchLink><br />*<searchLink fieldCode="DE" term="%22DIGITAL+electronics%22">DIGITAL electronics</searchLink><br />*<searchLink fieldCode="DE" term="%22CODING+theory%22">CODING theory</searchLink><br />*<searchLink fieldCode="DE" term="%22ESTIMATION+theory%22">ESTIMATION theory</searchLink><br />*<searchLink fieldCode="DE" term="%22ELECTRIC+distortion%22">ELECTRIC distortion</searchLink>
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  Label: Abstract
  Group: Ab
  Data: Recently, the demand for higher density digital recording has been increasing steadily. In this article, focusing on digital magnetic recording devices, such as magnetic disks and digital VTRs, a signal processing technique for achieving higher densities is described. First, the partial response system, Viterbi decoding method, and partial response maximum likelihood (PRML) system are described in detail. Next, various signal processing methods extensively studied in recent years for longitudinal magnetic recording are described. Recent research trends in signal processing methods responsive to nonlinear distortions, with allowance for nonlinear distortions, such as partial erasure as factors promoting error rate degradation in high-density recording, are discussed. The performances of various methods are compared. A signal processing method for vertical magnetic recording expected to be a promising technique for future high density recording is described. ©1999 Scripta Technica, Electron Comm Jpn Pt 2, 82(6): 25–45, 1999 [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/(SICI)1520-6432(199906)82:6<25::AID-ECJB4>3.0.CO;2-0
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 21
        StartPage: 25
    Subjects:
      – SubjectFull: SIGNAL processing
        Type: general
      – SubjectFull: MAGNETIC recorders & recording
        Type: general
      – SubjectFull: DIGITAL electronics
        Type: general
      – SubjectFull: CODING theory
        Type: general
      – SubjectFull: ESTIMATION theory
        Type: general
      – SubjectFull: ELECTRIC distortion
        Type: general
    Titles:
      – TitleFull: Signal processing technologies for high-density digital magnetic recording.
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          Name:
            NameFull: Hisaki Osawa
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            NameFull: Yoshihiro Okamoto
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            NameFull: Hidetoshi Saito
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          Dates:
            – D: 01
              M: 06
              Text: Jun99
              Type: published
              Y: 1999
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              Value: 8756663X
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              Value: 82
            – Type: issue
              Value: 6
          Titles:
            – TitleFull: Electronics & Communications in Japan, Part 2: Electronics
              Type: main
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