Noise characteristics of double-layered perpendicular media
2001
Abstract Time-domain analysis of a reproduced waveform shows that the media noise of double–layered perpendicular media consists of transition noise localized around the transitions and DC-erased area noise independent of transition. We used this analysis to develop a waveform model, incorporating media noise, to estimate the bit error rate performance of double-layered perpendicular media. Moreover, we proposed a simple mathematical method for estimating the media noise power using the head/media magnetic parameters and R/W conditions.
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