Pattern-discrimination method for error correction of 16/17 MTR code on a high-density magnetic recording channel.

Autor: Nishiya, Takushi, Mita, Seiichi, Nara, Takashi
Předmět:
Zdroj: Electronics & Communications in Japan, Part 2: Electronics; Jun2001, Vol. 84 Issue 6, p60-68, 9p
Abstrakt: A pattern discrimination method for error correction of 16/17 MTR code is described for a high-density magnetic recording channel. It is based on the characteristics of bit-error patterns of the 16/17 MTR code, where frequent bit errors are restricted to several patterns. The difference between a playback signal and an estimated signal is compared to the waveform patterns caused by the frequent error events. When the difference in the patterns is close to the error waveform, a corresponding decoding error is thought to have occurred and this error is corrected. Simulation results showed that the use of this method improves performance by about 1.2 dB at a user recording density (iDU) of 3. © 2001 Scripta Technica, Electron Comm Jpn Pt 2, 84(6): 60–68, 2001 [ABSTRACT FROM AUTHOR]
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