Adaptive partial-response maximum-likelihood detection in optical recording media
Tóm tắt
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.
Từ khóa
#Maximum likelihood detection #Optical recording #Radio frequency #Adaptive systems #Error analysis #Logic #Adaptive arrays #Optical modulation #Clocks #FluctuationsTài liệu tham khảo
ide, 2001, ISOM2001 Toyama Satellite Technical Digest, 84
urakawa, 2000
10.1143/JJAP.37.2214