Nonlinear Modeling and Equalization of Super-Resolution Near-Field Structure Discs Using a Canonical Piecewise-Linear Model
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概要
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In this study, we apply the canonical piecewise-linear (PWL) model to the modeling of super-resolution near-field structure (super-RENS) read-out signals because reliable and accurate channel modeling is essential for performance analysis and development of equalizers for super-RENS disc systems. To mitigate the nonlinear inter symbol interference (ISI), furthermore, we propose a canonical PWL model-based equalizer (PWLEQ) for super-RENS discs. The validity of the model and the equalizer is tested using radio frequency (RF) signal samples obtained from a super-RENS disc. The modeling experiment results verified that the canonical PWL model can be efficiently utilized for the nonlinear modeling of super-RENS systems. The raw bit error rate (BER) performance with the proposed equalizer is measured for various delays and step sizes of the canonical PWL model. We observe a marked improvement in raw BER when using the proposed equlaizer.
- 2010-08-25
著者
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Im Sungbin
School Of Electronics Engineering Soongsil University
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Seo Manjung
School of Electronic Engineering, Soongsil University, Seoul 156-743, Korea
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Kim Chonghoon
School of Electronic Engineering, Soongsil University, 511 Sangdo-dong, Dongjak-gu, Seoul 156-743, Korea
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Shim Heesung
School of Electronic Engineering, Soongsil University, 511 Sangdo-dong, Dongjak-gu, Seoul 156-743, Korea
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Im Sungbin
School of Electronic Engineering, Soongsil University, 511 Sangdo-dong, Dongjak-gu, Seoul 156-743, Korea
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