A Channel Model for a Magnetic Tape Storage System with Dropouts

Dropout events are one of the main contributors to errors in magnetic tape storage systems, and their deteriorating effects are manifested in the read-back signal. The first step in designing signal-processing and/or coding solutions to alleviate dropout events is to model these events. In this paper, we present a channel model defined by a time-varying filter that captures the increased intersymbol interference effects and read-back signalattenuation effects of dropout events. In addition, we present an efficient software implementation of the dropout-channel model.

By: Sundararajan Sankaranarayanan, Jens Jelitto, Evangelos Eleftheriou, Bane Vasic

Published in: RZ3573 in 2005


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