NDLI: On the Use of Averaging to Estimate the Dibit Response

Content Provider	IEEE Xplore Digital Library
Author	Ting, M.
Copyright Year	1965
Abstract	In the magnetics literature, the dibit response is typically estimated assuming knowledge of the written bit sequence and noiseless readback signal. However, magnetic recording systems suffer from various noise sources, and the readback signals are noisy. One way to obtain an estimate of the noiseless readback signal from noisy measurements is via spatial and temporal averaging. In this paper, transition position jitter and additive noise sources are considered in the readback signal. Using this model, we show that in the asymptotic regime of an infinite number of track locations and re-reads, the estimate formed via averaging has a bias. The effect of spatial and temporal averaging on the variance of the estimate is quantified without assuming an explicit distribution for the transition jitter and additive noise.
Sponsorship	IEEE Magnetics Society
Starting Page	3785
Ending Page	3788
Page Count	4
File Size	263435
File Format	PDF
ISSN	00189464
Volume Number	44
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic noise Jitter Additive noise Magnetic recording Intersymbol interference Colored noise Noise figure Noise measurement Space vector pulse width modulation modeling magnetic recording noise
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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