Convergence times of timing recovery schemes for magneto-resistive magnetic-recording channels

Gregory L. Silvus; Bhagavatula Vijaya Kumar

doi:10.1117/12.230062

15 January 1996 Convergence times of timing recovery schemes for magneto-resistive magnetic-recording channels

Gregory L. Silvus, Bhagavatula Vijaya Kumar

Proceedings Volume 2604, High-Density Data Recording and Retrieval Technologies; (1996) https://doi.org/10.1117/12.230062
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

Before detecting signals from magnetic storage devices, we must derive a clock signal via a timing-recovery technique. We concentrate on decision-directed timing-recovery schemes that operate at baud rate. While magnetic recording readback signals suffer from intersymbol interference and noise, this study also considers possibly asymmetric pulse shapes caused by magneto-resistive readback heads. We show performance results based on baud-rate sampling and introduce new techniques to combat pulse asymmetry.

Citation Download Citation

Gregory L. Silvus and Bhagavatula Vijaya Kumar "Convergence times of timing recovery schemes for magneto-resistive magnetic-recording channels", Proc. SPIE 2604, High-Density Data Recording and Retrieval Technologies, (15 January 1996); https://doi.org/10.1117/12.230062

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