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Magnetic recording system design to reduce medium noise through signal precompensation
Written by:
Dakshi Agrawal.
Citation:
Master's Thesis, Washington University, Saint Louis, Missouri, 1995.
Copyright © (1995) Dakshi Agrawal.
Abstract:
Magnetic recording systems are the main mass storage devices for digital
data. In present recording systems, medium noise is the primary source
of noise and consequently it limits the storage density of the device. We
propose a new model for medium noise and a novel system architecture
designed to exploit certain signal and spatial dependencies of medium
noise in order to compensate for it. We define an optimality criterion
for the system design and present a detailed analysis of our design for
both signal-independent and signal-dependent medium noise. Simulations
of the proposed system performed using both simulated and experimental
data show promising results.
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United States
