Estimation of track misregistration by using dual-stripe magnetoresistive heads

Na Helian; Zhi Gang Wang; Bin Liu; Desmond J Mapps; Paul Robinson; Warwick Clegg; David Wilton; Yoshihisa Nakamura

doi:10.1109/20.703877

Estimation of track misregistration by using dual-stripe magnetoresistive heads

Na Helian, Zhi Gang Wang, Bin Liu, Desmond J Mapps, Paul Robinson, Warwick Clegg, David Wilton, Yoshihisa Nakamura

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

Abstract

We propose here a new concept of servoing with dual-stripe magnetoresistive (DSMR) heads. This paper examines the use of its asymmetric microtrack profile for estimating the data and providing servo information. The misregistration estimation algorithm is addressed for a class 4 partial response (PR4) equalized data channel. This requires a low-pass filter to reach an accurate estimation after enough samples are used. Simulation results for a specific head configuration are given which verify the estimating performance. The estimator estimates track misregistration precisely and quickly enough for practical purposes in a real storage system.

Original language	English
Pages (from-to)	2348-2355
Journal	IEEE Transactions on Magnetics
Volume	34
Issue number	4
DOIs	https://doi.org/10.1109/20.703877
Publication status	Published - Jul 1998

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title = "Estimation of track misregistration by using dual-stripe magnetoresistive heads",

abstract = "We propose here a new concept of servoing with dual-stripe magnetoresistive (DSMR) heads. This paper examines the use of its asymmetric microtrack profile for estimating the data and providing servo information. The misregistration estimation algorithm is addressed for a class 4 partial response (PR4) equalized data channel. This requires a low-pass filter to reach an accurate estimation after enough samples are used. Simulation results for a specific head configuration are given which verify the estimating performance. The estimator estimates track misregistration precisely and quickly enough for practical purposes in a real storage system.",

author = "Na Helian and Wang, {Zhi Gang} and Bin Liu and Mapps, {Desmond J} and Paul Robinson and Warwick Clegg and David Wilton and Yoshihisa Nakamura",

year = "1998",

month = jul,

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AU - Helian, Na

AU - Wang, Zhi Gang

AU - Liu, Bin

AU - Mapps, Desmond J

AU - Robinson, Paul

AU - Clegg, Warwick

AU - Wilton, David

AU - Nakamura, Yoshihisa

PY - 1998/7

Y1 - 1998/7

N2 - We propose here a new concept of servoing with dual-stripe magnetoresistive (DSMR) heads. This paper examines the use of its asymmetric microtrack profile for estimating the data and providing servo information. The misregistration estimation algorithm is addressed for a class 4 partial response (PR4) equalized data channel. This requires a low-pass filter to reach an accurate estimation after enough samples are used. Simulation results for a specific head configuration are given which verify the estimating performance. The estimator estimates track misregistration precisely and quickly enough for practical purposes in a real storage system.

AB - We propose here a new concept of servoing with dual-stripe magnetoresistive (DSMR) heads. This paper examines the use of its asymmetric microtrack profile for estimating the data and providing servo information. The misregistration estimation algorithm is addressed for a class 4 partial response (PR4) equalized data channel. This requires a low-pass filter to reach an accurate estimation after enough samples are used. Simulation results for a specific head configuration are given which verify the estimating performance. The estimator estimates track misregistration precisely and quickly enough for practical purposes in a real storage system.

UR - https://ieeexplore.ieee.org/abstract/document/703877

U2 - 10.1109/20.703877

DO - 10.1109/20.703877

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SP - 2348

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4

ER -

Estimation of track misregistration by using dual-stripe magnetoresistive heads

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