Dropout compensation in magnetic tape channels by adaptive equalization and coding
| Autor: | Jaekyun Moon, Baldur Steingrimsson |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Computer science
Concatenated error correction code Concatenation Detector Equalization (audio) Equalizer Adaptive equalizer Data_CODINGANDINFORMATIONTHEORY Electronic Optical and Magnetic Materials Turbo equalizer Adaptive coding Control theory Turbo code Fading Electrical and Electronic Engineering Decoding methods Computer Science::Information Theory Communication channel Parity bit |
| Zdroj: | IEEE Transactions on Magnetics. 37:3981-3993 |
| ISSN: | 0018-9464 |
| DOI: | 10.1109/20.966136 |
| Popis: | A simple adaptive extended partial response IV (EPR4) equalizer with an adaptive gain controller driven by a threshold detector with relaxed thresholds can be applied effectively on fading tape channels. The equalizer closely approximates the performance of the optimal EPR4 equalizer. Other EPR4 equalizers with certain advantageous features (the EPR4 equalizer with decision feedback and the PW/sub 50/-based EPR4 equalizer) are also studied. The parallel concatenated parity check (PCPC) code with iterative decoding is quite effective in mitigating the dropout effect. The complexity/performance tradeoffs of the PCPC code seem favorable compared to the low-density parity check code or to the turbo code. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|