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Proceedings Paper

Partial response equalization with nonlinearity-compensating signal asymmetry in DVD storage
Author(s): In Seok Hwang; Yong Hoon Lee; Pyong Yong Seong; Jung-Wan Ko
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Paper Abstract

We introduce an adaptive equalization technique that compensates for the channel nonlinearities causing asymmetric eye-patterns of RF signals in a digital versatile disk (DVD) system. Based on the observation that a DVD channel can be modeled as a cascade of modulation transfer function (MTF) and a zero-memory nonlinearity (ZNL), an adaptive maximum likelihhood sequence estimation (MLSE) receiver that estimates the nonlinearities and incorporates them in its metric calculation is developed. Computer simulation results demonstrate that the proposed receiver can outperform conventional MLSE when signal asymmetry is present.

Paper Details

Date Published: 23 October 1998
PDF: 7 pages
Proc. SPIE 3401, Optical Data Storage '98, (23 October 1998); doi: 10.1117/12.327933
Show Author Affiliations
In Seok Hwang, Korea Advanced Institute of Science and Technology (South Korea)
Yong Hoon Lee, Korea Advanced Institute of Science and Technology (South Korea)
Pyong Yong Seong, Samsung Electronics (South Korea)
Jung-Wan Ko, Samsung Electronics (South Korea)

Published in SPIE Proceedings Vol. 3401:
Optical Data Storage '98
Shigeo R. Kubota; Tomas D. Milster; Paul J. Wehrenberg, Editor(s)

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