Title :
Adaptive partial-response maximum-likelihood detection in optical recording media
Author_Institution :
Opt. Disc Dev. Div., Sony Corp., Tokyo, Japan
Abstract :
Presented the adaptive partial-response maximum-likelihood (PRML) detector. This detector learns the reference levels for the calculation of the metrics from past RF samples. Therefore, it enables asymmetry and level fluctuation compensation. In this paper, we report the mechanism of the adaptive PRML detection and the results of applying this detection to error rate measurements of 25 Gbyte optical discs recorded with 17 pp modulation signal.
Keywords :
compensation; maximum likelihood detection; optical disc storage; partial response channels; 25 Gbyte; adaptive partial-response maximum-likelihood detection; asymmetry; error rate measurements; level fluctuation compensation; modulation signal; optical discs; optical recording media; reference levels; Adaptive arrays; Adaptive systems; Clocks; Error analysis; Fluctuations; Logic; Maximum likelihood detection; Optical modulation; Optical recording; Radio frequency;
Conference_Titel :
Optical Memory and Optical Data Storage Topical Meeting, 2002. International Symposium on
Print_ISBN :
0-7803-7379-0
DOI :
10.1109/OMODS.2002.1028637
