This paper presents a model that includes both signal dependent and signal independent
noises. A method for extracting statistics of the coefficients of the noise expansion from …

Noise in magnetic recording is contributed by the media, electronics, and mechanical
imperfections in servoing. These affect signal-to-noise as a function of track width and linear …

This report describes a new method to emulate the magnetic recording channel. The use of
asynchronous high frequency sampling eliminates the need for a phase locked loop circuit …

Volterra-series models of magnetic-saturation recording channels are used to derive
readback structures that compensate for channel nonlinearities. These structures are based …

The loss transfer function of a magnetic recording channel can be readily measured, but
delay between writing and reading prevents simple measurement of the phase function. A …

The media noise in magnetic recording is strongly signal dependent. By modeling the
medium as a collection of independent magnetic grains, the noise variance can be shown to …

Methods for identifying the digital magnetic recording channel in which data dependent
nonlinear effects are present are described. The models used include the finite state …

A set of rules, equations and relations are given for the effects of coherent and statistical
noise on digital recorders. Simple formulas, intended for laboratory use, are given for the …

The authors have studied the spatial noise characteristics of uniformly magnetized media
and implemented a synchronous magnetic pulse detection technique to measure waveforms …

This paper considers a model for the magnetic recording channel that includes both signal-
dependent and signal independent noises. Detectors that use the information about the …