2016 Fiscal Year Final Research Report
Signal processing for array haed reading in super high density HDD
| Project/Area Number |
26420358
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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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 |
|
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| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Keywords | HDD / SMR / array head / signal processing / narrow track pitch / TDMR / 2D-equalization |
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| Outline of Final Research Achievements |
The spreading of reader sensitivity for narrow-track recording is a degrading factor with the jitter-like medium noise due to the fluctuation of magnetic transitions in super high density HDD by shingled magnetic recording. The influence from the adjacent tracks in read and write processes is clarified by computer simulation using granular media. Array head reading and two-dimensional equalization enable a smaller bit-aspect ratio with narrower track pitch and longer bit-length to be choose, and achieve good performance.
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| Free Research Field |
Information storage
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