多航迹处理BPMR系统中基于图的检测方法研究

2016 13th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2016-06-01 DOI:10.1109/ECTICON.2016.7561333

T. Sopon, W. Wongtrairat

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引用次数: 1

摘要

位图形媒体记录系统面临着二维干扰信道，即码间干扰和磁道间干扰，这些干扰会降低磁记录系统的性能。在本文中，我们提出了两种将因子图中的消息传递修改为二维干扰信道中基于图的检测器的方法。一种方法是将因子图应用于GB检测器的簇2×2通道矩阵中的基本簇，而第二种方法是通过忽略因子图中对基本簇的可靠性更新的拐角i来处理二维干扰通道。仿真结果表明，在面密度为2、2.5和3 Tbits/in2的BPMR系统上，改进的GB (MGB)检测器(full)和MGB检测器(no corner ITIs)方法的性能优于传统的GB检测器(full)方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Investigation of graph-based detection in BPMR system with multi-track processing

A bit patterned media recording (BPMR) system is faced with two-dimensional (2-D) interference channel, that is inter-symbol interference (ISI) and inter-track interference (ITI), which degrades a performance of a magnetic recording system. In this paper, we propose two methods to modify message-passing in a factor graph to the graph-based (GB) detector in the 2-D interference channel. One applies the factor graph to the basic clusters in the cluster 2×2 channel matrix for the GB detector, while the second method the 2-D interference channel by ignoring cornered ITIs of the reliability updates in the factor graph to the basic clusters. The simulation results show the performance of the modified GB (MGB) detector (full) and MGB detector (no cornered ITIs) methods better than the conventional GB detector (full) on BPMR system at the areal density 2, 2.5 and 3 Tbits/in2.

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来源期刊

2016 13th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)

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