Partial response equalization with nonlinearity-compensating signal asymmetry in DVD storage

In Seok Hwang; Yong Hoon Lee; Pyong Yong Seong; Jung-Wan Ko

doi:10.1117/12.327933

23 October 1998 Partial response equalization with nonlinearity-compensating signal asymmetry in DVD storage

In Seok Hwang, Yong Hoon Lee, Pyong Yong Seong, Jung-Wan Ko

Proceedings Volume 3401, Optical Data Storage '98; (1998) https://doi.org/10.1117/12.327933
Event: Optical Data Storage '98, 1998, Aspen, CO, United States

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.

Citation Download Citation

In Seok Hwang, Yong Hoon Lee, Pyong Yong Seong, and Jung-Wan Ko "Partial response equalization with nonlinearity-compensating signal asymmetry in DVD storage", Proc. SPIE 3401, Optical Data Storage '98, (23 October 1998); https://doi.org/10.1117/12.327933

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