Study of an extended partial-response, class IV, channel for digital magnetic recording

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Title:	Study of an extended partial-response, class IV, channel for digital magnetic recording
Authors:	Lin,YY;Yeh,CY
Contributors:	電機工程研究所
Keywords:	PRML
Date:	1997
Issue Date:	2010-06-29 20:21:38 (UTC+8)
Publisher:	中央大學
Abstract:	In this work, we study an EPR-IV system for high density digital recording and compare it to the PRML recording system. A combinatorial optimization technique that uses the simulated annealing algorithm in conjunction with a descent method is employed for optimization of partial response (PR) equalizers. The gradient algorithm to track variations of timing phase for the EPR-IV channel is investigated, Also, a generalized Viterbi algorithm is used for detecting the EPR-IV system, Simulation results demonstrate that at high recording density, a coding gain over the PRML system can be obtained for the EPR-IV system with a comparable complexity.
Relation:	IEEE TRANSACTIONS ON MAGNETICS
Appears in Collections:	[Graduate Institute of Electrical Engineering] journal & Dissertation

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