Physically based information science of magnetic recording. II. Physical sources of medium noise

For pt. I. see O'Sullivan et al (Proc. 30th Allerton Conf. on Comm., Cont. and Comp., pp. 792-798, 1992). A physically based model for a magnetic recording medium is augmented by the simulation of reading with a standard head model. The medium noise generated by this model comprises a repeatable component and a non-repeatable component. The repeatable component of medium noise is partially statistically characterized. The non-repeatable component of medium noise is shown to depend on the intrinsic properties of the recording medium in a manner consistent with the medium's computed storage capacity bound.<
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