Perpendicular and longitudinal recording: a signal-processing and coding perspective

Equalization and noise prediction followed by sequence detection and postprocessing are studied for double-layer perpendicular recording channels that are corrupted by electronics and transition noise. The performance of various outer coding schemes, such as conventional Reed-Solomon codes with 8and...

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Veröffentlicht in:	IEEE transactions on magnetics 2002-07, Vol.38 (4), p.1698-1704
Hauptverfasser:	Cideciyan, R.D., Eleftheriou, E., Mittelholzer, T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Channels Coding Communication channels Condensed matter: electronic structure, electrical, magnetic, and optical properties Detectors Disk drives Disk recording Electronics Equalization Exact sciences and technology Magnetic heads Magnetic properties and materials Magnetic recording materials Magnetism Maximum likelihood detection Noise Parity Parity check codes Perpendicular magnetic recording Physics Polynomials Recording Signal processing Studies of specific magnetic materials Symbols
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Beschreibung
Zusammenfassung:	Equalization and noise prediction followed by sequence detection and postprocessing are studied for double-layer perpendicular recording channels that are corrupted by electronics and transition noise. The performance of various outer coding schemes, such as conventional Reed-Solomon codes with 8and 10-bit symbols and low-density parity check codes, is evaluated, and a signal-processing and coding perspective is presented for both longitudinal and perpendicular recording channels. Finally, the capacity of recording channels is characterized.
ISSN:	0018-9464 1941-0069
DOI:	10.1109/TMAG.2002.1017759