| Presentation | 2002/10/31 Modeling of Readback Pulse of Perpendicular Recording Channel Weichun Ye, Huijie Cao, Yu Lin, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The performances of three transition response models used in perpendicular magnetic recording channel were compared and analyzed. Based on the study results, three modified transition response models with an exponential term 'k' added to the conventional models were proposed that match better with the actual response. An analytically derived response was used as the reference for comparison with the waveform obtained from the model. The optimum value of the index 'k' is implemented to minimize the fitting error. Simulation results indicate that the modified models with addition of index 'k' which gave smaller fitting error were superior to the popular models. The performances of modified hyperbolic tangent and modified error function models are better than that of modified arctangent model. Also, the modified hyperbolic arctangent model seems easier to implement for simulation and evaluation of channel performance because of its simplicity. The effects of GMR head and double layered media with different geometric and magnetic parameters on the readback pulse shape were also investigated. The study results indicate that a model with optimal 'k' could be used to evaluate the system performance for a particular head-media combination. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Perpendicular recording / Modeling / Pulse shape |
| Paper # | MR 2002-46 |
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| Conference Information | |
| Committee | MR |
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| Conference Date | 2002/10/31(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Magnetic Recording (MR) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Modeling of Readback Pulse of Perpendicular Recording Channel |
| Sub Title (in English) | |
| Keyword(1) | Perpendicular recording |
| Keyword(2) | Modeling |
| Keyword(3) | Pulse shape |
| 1st Author's Name | Weichun Ye |
| 1st Author's Affiliation | Data Storage Institute() |
| 2nd Author's Name | Huijie Cao |
| 2nd Author's Affiliation | Data Storage Institute |
| 3rd Author's Name | Yu Lin |
| 3rd Author's Affiliation | Data Storage Institute |
| Date | 2002/10/31 |
| Paper # | MR 2002-46 |
| Volume (vol) | vol.102 |
| Number (no) | 423 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |