A Study on Development of Signal Processing Systems for Ultrahigh-Density Perpendicular Magnetic Recording
| Project/Area Number |
21360188
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Ehime University |
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Principal Investigator |
OSAWA Hisashi 愛媛大学, 大学院・理工学研究科, 客員教授 (50029336)
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| Co-Investigator(Kenkyū-buntansha) |
OKAMOTO Yoshihiro 愛媛大学, 大学院理工学研究科, 教授 (20224082)
NAKAMURA Yasuaki 愛媛大学, 大学院理工学研究科, 講師 (50380259)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2011: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2010: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2009: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
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| Keywords | 超高密度記録 / 垂直磁気記録 / 二次元磁気記録 / シングル(瓦)記録 / 二次元信号処理方式 / 媒体モデル器 / 記録再生モデル / 二次元ニューラルネットワーク等化 / TDMR / 二次元ニューラルネットワーク等化器 / LDPC符号化・繰り返し復号化方式 / 離散ボロノイ図 / 媒体モデル / 信号処理方式 / GPRML方式 / サーマルディケイ / ニューラルネットワーク等化 / LDPC符号化・繰り返し復号方式 |
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| Research Abstract |
As a signal processing system for the next-generation hard disk drive in which ultra-high density recording of more than 2Tb/in^2(2 trillion bits per square inch) is required, the two-dimensional signal processing system is studied. A two-dimensional neural network equalizer as the two-dimensional signal processing system for ultra-high density magnetic recording is developed. It is shown that the equalizer can attain 4Tb/in^2 which the conventional one-dimensional linear equalizer cannot achieve.
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Report
(4 results)
Research Products
(92 results)
