A novel approach to removing intersymbol interference from spin-stand images

TitleA novel approach to removing intersymbol interference from spin-stand images
Publication TypeJournal Articles
Year of Publication2004
AuthorsMayergoyz ID, Tse C, Krafft C, McAvoy P
JournalMagnetics, IEEE Transactions on
Volume40
Issue4
Pagination2197 - 2199
Date Published2004/07//
ISBN Number0018-9464
Keywordsalgorithm;, characterization;, Deconvolution, function, function;, giant, giant-magnetoresistive, Head, heads;, image, image;, imaging;, Interference, interference;, intersymbol, ISI-distorted, ISI-free, magnetic, magnetization, magnetoresistance;, patterns;, readback, removal;, response, signal;, spin-stand, suppression;
Abstract

A novel intersymbol interference (ISI) removal technique based on the "response function" characterization of giant-magnetoresistive heads is presented. It is demonstrated that the ISI-free readback image that corresponds to the actual underlying magnetization patterns can be extracted from the ISI-distorted readback signal through deconvolution. A new image deconvolution algorithm has been implemented, and it has been shown that it effectively removes the ISI distortions.

DOI10.1109/TMAG.2004.830153