Compensation of MR head non-linearities using a saturable transfer function

Compensation of MR head non-linearities using a saturable transfer function

It is well known that the nonlinear behavior of Magneto-Resistive (MR) heads result in the isolated pulses having asymmetry and saturation. These nonlinear effects can be quantified by measuring the positive and negative isolated pulses. In this paper, we propose a saturable model for estimating the...

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Main Authors: Lin, Maria Yu, Foo, Say Wei, Mathew, George, Ye, Weichun, Bergmans, J. W. M.
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2009
Online Access:https://hdl.handle.net/10356/90749
http://hdl.handle.net/10220/4578
http://sfxna09.hosted.exlibrisgroup.com:3410/ntu/sfxlcl3?sid=metalib:ISI_WOS_XML&id=doi:&genre=&isbn=&issn=0018-9464&date=2000&volume=36&issue=5&spage=2490&epage=2492&aulast=Lin&aufirst=%20MY&auinit=MY&title=IEEE%20TRANSACTIONS%20ON%20MAGNETICS&atitle=Compensation%20of%20MR%20head%20non%2Dlinearities%20using%20a%20saturable%20transfer%20function
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-907492020-03-07T14:02:39Z Compensation of MR head non-linearities using a saturable transfer function Lin, Maria Yu Foo, Say Wei Mathew, George Ye, Weichun Bergmans, J. W. M. School of Electrical and Electronic Engineering It is well known that the nonlinear behavior of Magneto-Resistive (MR) heads result in the isolated pulses having asymmetry and saturation. These nonlinear effects can be quantified by measuring the positive and negative isolated pulses. In this paper, we propose a saturable model for estimating the MR nonlinearity from read-back signals. It models the nonlinearity using bias and saturation parameters. The proposed model can be used to compensate the nonlinearity in the read-back signal, thus providing a way to linearize the channel. Simulations done using measured data demonstrate the effectiveness of the proposed model. Published version 2009-04-24T08:31:42Z 2019-12-06T17:53:17Z 2009-04-24T08:31:42Z 2019-12-06T17:53:17Z 2000 2000 Journal Article Lin, M. Y., Foo, S. W., Mathew, G., Bergmans, J. W. M., & Ye, W. (2000). Compensation of MR head non-linearities using a saturable transfer function. IEEE Transactions on Magnetics, (36)5, 2490-2492. 0018-9464 https://hdl.handle.net/10356/90749 http://hdl.handle.net/10220/4578 http://sfxna09.hosted.exlibrisgroup.com:3410/ntu/sfxlcl3?sid=metalib:ISI_WOS_XML&id=doi:&genre=&isbn=&issn=0018-9464&date=2000&volume=36&issue=5&spage=2490&epage=2492&aulast=Lin&aufirst=%20MY&auinit=MY&title=IEEE%20TRANSACTIONS%20ON%20MAGNETICS&atitle=Compensation%20of%20MR%20head%20non%2Dlinearities%20using%20a%20saturable%20transfer%20function 10.1109/20.908338 en IEEE transactions on magnetics © 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. 3 p. application/pdf
institution Nanyang Technological University
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country Singapore
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language English
description It is well known that the nonlinear behavior of Magneto-Resistive (MR) heads result in the isolated pulses having asymmetry and saturation. These nonlinear effects can be quantified by measuring the positive and negative isolated pulses. In this paper, we propose a saturable model for estimating the MR nonlinearity from read-back signals. It models the nonlinearity using bias and saturation parameters. The proposed model can be used to compensate the nonlinearity in the read-back signal, thus providing a way to linearize the channel. Simulations done using measured data demonstrate the effectiveness of the proposed model.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Lin, Maria Yu
Foo, Say Wei
Mathew, George
Ye, Weichun
Bergmans, J. W. M.
format Article
author Lin, Maria Yu
Foo, Say Wei
Mathew, George
Ye, Weichun
Bergmans, J. W. M.
spellingShingle Lin, Maria Yu
Foo, Say Wei
Mathew, George
Ye, Weichun
Bergmans, J. W. M.
Compensation of MR head non-linearities using a saturable transfer function
author_sort Lin, Maria Yu
title Compensation of MR head non-linearities using a saturable transfer function
title_short Compensation of MR head non-linearities using a saturable transfer function
title_full Compensation of MR head non-linearities using a saturable transfer function
title_fullStr Compensation of MR head non-linearities using a saturable transfer function
title_full_unstemmed Compensation of MR head non-linearities using a saturable transfer function
title_sort compensation of mr head non-linearities using a saturable transfer function
publishDate 2009
url https://hdl.handle.net/10356/90749
http://hdl.handle.net/10220/4578
http://sfxna09.hosted.exlibrisgroup.com:3410/ntu/sfxlcl3?sid=metalib:ISI_WOS_XML&id=doi:&genre=&isbn=&issn=0018-9464&date=2000&volume=36&issue=5&spage=2490&epage=2492&aulast=Lin&aufirst=%20MY&auinit=MY&title=IEEE%20TRANSACTIONS%20ON%20MAGNETICS&atitle=Compensation%20of%20MR%20head%20non%2Dlinearities%20using%20a%20saturable%20transfer%20function
_version_ 1681036012412731392

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