Measurements and Modelling of Noise in DC-Erased Thin-Film Media

Martin J. Vos; Yoichiro Tanaka; Jack H. Judy

doi:10.1109/20.104650

Measurements and Modelling of Noise in DC-Erased Thin-Film Media

Martin J. Vos, Yoichiro Tanaka, Jack H. Judy

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Experimental and theoretical results are given for the noise produced in thin-film media after reverse DC erasure. The noise spectra produced at high bit densities and at reverse DC erasure around the remanent coercivity look identical. A theoretical spectral model based on Poisson statistics shows a good fit with the measured noise spectra. A novel technique for measuring the medium noise in the spatial domain has been developed. The results obtained in the spatial domain through autocorrelation of the read flux agree well with the noise results obtained in the spectral domain.

Original language	English
Pages (from-to)	2149-2151
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	26
Issue number	5
DOIs	https://doi.org/10.1109/20.104650
Publication status	Published - 1990 Sep
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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title = "Measurements and Modelling of Noise in DC-Erased Thin-Film Media",

abstract = "Experimental and theoretical results are given for the noise produced in thin-film media after reverse DC erasure. The noise spectra produced at high bit densities and at reverse DC erasure around the remanent coercivity look identical. A theoretical spectral model based on Poisson statistics shows a good fit with the measured noise spectra. A novel technique for measuring the medium noise in the spatial domain has been developed. The results obtained in the spatial domain through autocorrelation of the read flux agree well with the noise results obtained in the spectral domain.",

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year = "1990",

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T1 - Measurements and Modelling of Noise in DC-Erased Thin-Film Media

AU - Vos, Martin J.

AU - Tanaka, Yoichiro

AU - Judy, Jack H.

PY - 1990/9

Y1 - 1990/9

N2 - Experimental and theoretical results are given for the noise produced in thin-film media after reverse DC erasure. The noise spectra produced at high bit densities and at reverse DC erasure around the remanent coercivity look identical. A theoretical spectral model based on Poisson statistics shows a good fit with the measured noise spectra. A novel technique for measuring the medium noise in the spatial domain has been developed. The results obtained in the spatial domain through autocorrelation of the read flux agree well with the noise results obtained in the spectral domain.

AB - Experimental and theoretical results are given for the noise produced in thin-film media after reverse DC erasure. The noise spectra produced at high bit densities and at reverse DC erasure around the remanent coercivity look identical. A theoretical spectral model based on Poisson statistics shows a good fit with the measured noise spectra. A novel technique for measuring the medium noise in the spatial domain has been developed. The results obtained in the spatial domain through autocorrelation of the read flux agree well with the noise results obtained in the spectral domain.

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Measurements and Modelling of Noise in DC-Erased Thin-Film Media

Abstract

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