Hybrid equalized partial response path-feedback maximum likelihood toward higher density Blu-ray disc

Recently, high density optical recording systems like BD (Blu-ray disc) have been standardized regarding a PRML (partial response maximum likelihood) signal processing technology, which has been thoroughly investigated on high density magnetic recording channels for many years. In order to gain a ma...

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Published in:IEEE transactions on consumer electronics 2005-02, Vol.51 (1), p.94-102
Main Authors: Higashino, S., Kajiwara, Y., Fujimiya, K., Shiraishi, J., Yamagami, T.
Format: Article
Language:English
Subjects:
Adaptive optics
Adaptive signal processing
Density
Discs
Disks
Drives
High density
Magnetic recording
Maximum likelihood detection
Optical discs
Optical recording
Optical signal processing
Phase detection
Phase locked loops
Signal processing
Viterbi algorithm
Waveforms
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container_end_page 102
container_issue 1
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container_title IEEE transactions on consumer electronics
container_volume 51
creator Higashino, S.
Kajiwara, Y.
Fujimiya, K.
Shiraishi, J.
Yamagami, T.
description Recently, high density optical recording systems like BD (Blu-ray disc) have been standardized regarding a PRML (partial response maximum likelihood) signal processing technology, which has been thoroughly investigated on high density magnetic recording channels for many years. In order to gain a margin of optical disc drives, PFML (path-feedback maximum likelihood), which is also known as adaptive Viterbi, has been also developed in recent years. In this paper, we propose a new signal processing system, which equalizes the waveform causally, enhances the performance of the PFML detector and provides a stable PLL (phase locked loop) towards much higher density formats than standard BDs.
doi_str_mv 10.1109/TCE.2005.1405705
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source IEEE Electronic Library (IEL) Journals
subjects Adaptive optics
Adaptive signal processing
Density
Discs
Disks
Drives
High density
Magnetic recording
Maximum likelihood detection
Optical discs
Optical recording
Optical signal processing
Phase detection
Phase locked loops
Signal processing
Viterbi algorithm
Waveforms
title Hybrid equalized partial response path-feedback maximum likelihood toward higher density Blu-ray disc
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