Asymmetry Compensation by Nonlinear Adaptive Partial Response Equalizer for 31.3 GB Blu-ray Disk ROM

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概要

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• We investigated a nonlinear adaptive partial response equalizer for the asymmetry compensation of a 31.3 GB higher linear density Blu-ray disc read only memory (ROM) with a 16% asymmetry. A second-order adaptive Volterra filter approximately equalizes a nonlinear signal into a linear one. We reduced its calculation complexity to design a digital circuit in optimum hardware resources by the result of computer simulations. Then we designed an adaptive Volterra filter on an FPGA evaluation board for bit error rate measurements. Finally, we determined that an adaptive Volterra filter has a capability to obtain improved bit error rates by signal linearization in a conventional Viterbi detector for PR(1221).

• 2005-05-15

著者

• Yamagami Tamotsu

  Signal Processing Development Department, Optical System Development Division, Home Electronics Development Group, Sony Corporation Home Electronics Network Company, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan

• Kajiwara Yoshiyuki

  Signal Processing Development Department, Optical System Development Division, Home Electronics Development Group, Sony Corporation Home Electronics Network Company, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan

• Higashino Satoru

  Signal Processing Development Department, Optical System Development Division, Home Electronics Development Group, Sony Corporation Home Electronics Network Company, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan

関連論文

• Partitioned Linear Interpolated Timing Recovery for Optical Discs
• Asymmetry Compensation by Nonlinear Adaptive Partial Response Equalizer for 31.3 GB Blu-ray Disk ROM
• Hybrid Equalized Partial Response Path-Feedback Maximum Likelihood for 35.4 GB Blu-ray Disc ROM

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