Modulation codes

Modulation codes

Two-dimensional (2-D) (d,k) codes have been proposed for multichannel recording systems. These codes increase storage density by employing a multichannel timing recovery mechanism. In addition to the (d,k) constraint, some recording systems require a charge constraint to meet the channel requirement...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE transactions on magnetics 1997-05, Vol.33 (3), p.2451-2458
Hauptverfasser: Lin, Yinyi, Liu, Pi-Hai
Format: Artikel
Sprache:eng
Schlagworte:
Clocks
Distortion
Eigenvalues and eigenfunctions
H infinity control
Interference constraints
Intersymbol interference
Modulation coding
Timing
Two dimensional displays
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Two-dimensional (2-D) (d,k) codes have been proposed for multichannel recording systems. These codes increase storage density by employing a multichannel timing recovery mechanism. In addition to the (d,k) constraint, some recording systems require a charge constraint to meet the channel requirements. In this study, capacities of 2-D charge constrained modulation codes are derived and computed from the binary and runlength graphs of the codes. The power spectral densities of codes are computed from their runlength graphs. Finally, a method to construct 2-D charge constrained modulation codes is provided.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.573872