NDLI: Dropout compensation in magnetic tape channels by adaptive equalization and coding

Content Provider	IEEE Xplore Digital Library
Author	Steingrimsson, B. Moon, J.
Copyright Year	1965
Abstract	A simple adaptive extended partial response IV (EPR4) equalizer with an adaptive gain controller driven by a threshold detector with relaxed thresholds can be applied effectively on fading tape channels. The equalizer closely approximates the performance of the optimal EPR4 equalizer. Other EPR4 equalizers with certain advantageous features (the EPR4 equalizer with decision feedback and the PW/sub 50/-based EPR4 equalizer) are also studied. The parallel concatenated parity check (PCPC) code with iterative decoding is quite effective in mitigating the dropout effect. The complexity/performance tradeoffs of the PCPC code seem favorable compared to the low-density parity check code or to the turbo code.
Sponsorship	IEEE Magnetics Society
Starting Page	3981
Ending Page	3993
Page Count	13
File Size	354225
File Format	PDF
ISSN	00189464
Volume Number	37
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Equalizers Programmable control Adaptive control Parity check codes Detectors Fading Feedback Concatenated codes Iterative decoding Turbo codes
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Dropout compensation in magnetic tape channels by adaptive equalization and coding