Partial response maximum-likelihood system and crosstalk cancellation method for high-density optical recording

H. Cho; J. An; S. Ong; D. Hong; S. Ahn; J. Kim

doi:10.1117/1.1386791

Partial response maximum-likelihood system and crosstalk cancellation method for high-density optical recording

H. Cho, J. An, S. Ong, D. Hong, S. Ahn, J. Kim

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Methods for partial response maximum-likelihood (PRML) detection and crosstalk cancellation are discussed. In accordance with the demand for increased recording density, a 20 Gbyte digital versatile disk (DVD) ROM channel is considered. The channel is modeled to be close to a real optical channel using DIFFRACT™. After comparing the spectral characteristics of various PR polynomials, P(D) = 1 + D+ D² + D³ is proposed as a target PR. The performance of the system is illustrated under the condition that the readout signal is degraded by crosstalk, radial tilt, and nonlinear distortions in optics. Finally, we present the multispot detection technique for crosstalk cancellation. The simulation results show that if no radial tilt is present, crosstalk is fully cancelled.

Original language	English
Pages (from-to)	1621-1628
Number of pages	8
Journal	Optical Engineering
Volume	40
Issue number	8
DOIs	https://doi.org/10.1117/1.1386791
Publication status	Published - 2001 Aug

Bibliographical note

Funding Information:
Support for this work (97K3-0803-01-04-1) was provided in part by the Korea Science and Engineering Foundation and LG Electronics, Inc., as well as by the Brain Korea 21 Project.

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Engineering(all)

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10.1117/1.1386791

Cite this

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abstract = "Methods for partial response maximum-likelihood (PRML) detection and crosstalk cancellation are discussed. In accordance with the demand for increased recording density, a 20 Gbyte digital versatile disk (DVD) ROM channel is considered. The channel is modeled to be close to a real optical channel using DIFFRACT{\texttrademark}. After comparing the spectral characteristics of various PR polynomials, P(D) = 1 + D+ D2 + D3 is proposed as a target PR. The performance of the system is illustrated under the condition that the readout signal is degraded by crosstalk, radial tilt, and nonlinear distortions in optics. Finally, we present the multispot detection technique for crosstalk cancellation. The simulation results show that if no radial tilt is present, crosstalk is fully cancelled.",

author = "H. Cho and J. An and S. Ong and D. Hong and S. Ahn and J. Kim",

note = "Funding Information: Support for this work (97K3-0803-01-04-1) was provided in part by the Korea Science and Engineering Foundation and LG Electronics, Inc., as well as by the Brain Korea 21 Project.",

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T1 - Partial response maximum-likelihood system and crosstalk cancellation method for high-density optical recording

AU - Cho, H.

AU - An, J.

AU - Ong, S.

AU - Hong, D.

AU - Ahn, S.

AU - Kim, J.

N1 - Funding Information: Support for this work (97K3-0803-01-04-1) was provided in part by the Korea Science and Engineering Foundation and LG Electronics, Inc., as well as by the Brain Korea 21 Project.

PY - 2001/8

Y1 - 2001/8

N2 - Methods for partial response maximum-likelihood (PRML) detection and crosstalk cancellation are discussed. In accordance with the demand for increased recording density, a 20 Gbyte digital versatile disk (DVD) ROM channel is considered. The channel is modeled to be close to a real optical channel using DIFFRACT™. After comparing the spectral characteristics of various PR polynomials, P(D) = 1 + D+ D2 + D3 is proposed as a target PR. The performance of the system is illustrated under the condition that the readout signal is degraded by crosstalk, radial tilt, and nonlinear distortions in optics. Finally, we present the multispot detection technique for crosstalk cancellation. The simulation results show that if no radial tilt is present, crosstalk is fully cancelled.

AB - Methods for partial response maximum-likelihood (PRML) detection and crosstalk cancellation are discussed. In accordance with the demand for increased recording density, a 20 Gbyte digital versatile disk (DVD) ROM channel is considered. The channel is modeled to be close to a real optical channel using DIFFRACT™. After comparing the spectral characteristics of various PR polynomials, P(D) = 1 + D+ D2 + D3 is proposed as a target PR. The performance of the system is illustrated under the condition that the readout signal is degraded by crosstalk, radial tilt, and nonlinear distortions in optics. Finally, we present the multispot detection technique for crosstalk cancellation. The simulation results show that if no radial tilt is present, crosstalk is fully cancelled.

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Partial response maximum-likelihood system and crosstalk cancellation method for high-density optical recording

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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