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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Gopalaswamy, S. Vijaya Kumar, B.V.K. |
| Copyright Year | 1965 |
| Abstract | We show by modeling and simulations that multitrack readback and equalization can lead to significant increases in the track density in magneto-optical recording without performance degradation due to two dimensional interference. We assume an architecture in which an isolated set of closely spaced tracks is read simultaneously. In an earlier paper, we described a multi-channel zero-forcing equalizer and a two-dimensional decision-feedback equalizer for this architecture, and presented their performance for PPM (pulse position modulation) optical recording channels. Since PWM (pulse width modulation) recording is more popular in magneto-optic (MO) disks, we model the PWM channel in this paper and show simulation results for the performance improvement obtained by using multi-channel equalization for data recorded in PWM format. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 3265 |
| Ending Page | 3267 |
| Page Count | 3 |
| File Size | 368897 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 33 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1997-09-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Pulse width modulation Magnetooptic recording Optical pulses Space vector pulse width modulation Optical recording Degradation Interference Decision feedback equalizers Optical modulation Magnetic modulators |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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