Convolutional code and 2-dimensional PRML class IV for multi-track magnetic recording system

N. Kogo, N. Hirano, R. Kohno
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引用次数: 3

Abstract

This paper proposes a method of joint decoding for a combined system between a 2D partial response (2-D PR) system and convolutional codes for the purpose of high density magnetic recording. Since both the 2D PR system and convolutional code can be represented with trellis diagrams, decoding performance can be improved by joint decoding with their overall trellis diagram. Moreover, a method of decoding which can achieve a low amount of calculation is also investigated.
多道磁记录系统的卷积码和二维PRML IV类
提出了一种用于高密度磁记录的二维部分响应系统与卷积码组合系统的联合译码方法。由于二维PR系统和卷积码都可以用栅格图表示,因此可以通过与它们的整体栅格图联合解码来提高解码性能。此外,还研究了一种低计算量的译码方法。
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