Title :
A modified PRML channel for perpendicular magnetic recording
Author_Institution :
Central Res. Lab., Hitachi Ltd., Kokubunji, Japan
fDate :
9/1/1996 12:00:00 AM
Abstract :
PRML channels for perpendicular magnetic recording with a ring head and a single layer magnetic media are investigated. The general expression of these PRML channels with dipulse-shaped signals is defined, and one PRML channel suitable for high-speed processing with a compact circuit is found. Simulations confirm that these PRML channels have better performance than for longitudinal magnetic recording
Keywords :
Viterbi detection; magnetic recording noise; maximum likelihood detection; perpendicular magnetic recording; signal processing; compact circuit; dipulse-shaped signals; high-speed processing; modified PRML channel; partial response maximum likelihood signal processing; perpendicular magnetic recording; ring head; simulation; single layer magnetic media; Circuits; Magnetic domains; Magnetic heads; Magnetic recording; Magnetic separation; Magnetization; Perpendicular magnetic recording; Signal detection; Signal processing; Viterbi algorithm;
Journal_Title :
Magnetics, IEEE Transactions on
