Modeling of Digital Servo System for Optical Pickup Tuner

광 픽업 조정기를 위한 디지털 서보 시스템의 모델링

  • Published : 1999.01.01

Abstract

CD-ROM(Compact Disk-Read Only Memory) is very attractive storage media because it has much storage space but is small size and portable. Optical pickup, one of the most important parts for reading data on a CD-ROM, is not produced tuned up. For the use of goods, we must tune up the optical pickup by adjusting the screw for adjustment. First, we developed analog servo system for optical pickup tuners. For eliminating some problems in analog servo system, this paper designed the modeling of digital servo system for optical pickup tuner. Though the characteristics of optical pickup are changed, the digital servo system for optical pickup tuner can easily apply to all pickup, and can reduce the measurement error among the optical pickup tuners. For the purpose of confirming the designed digital servo system, we produced data that specify the disk vibration and the disk eccentricity, and simulated servo system with MATLAB.

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References

  1. 도해 콤팩트 디스크 CD-플레이어 기술 정기혁
  2. GCD-R540B Specification for optical pickup HOF-EIF, EIQ for CD-ROM GCD-R520B
  3. MATLAB을 이용한 제어 시스템 설계 황우현;안성모
  4. 제어 시스템의 분석과 MATLAB의 활용 정슬
  5. IEEE Trans. consumer Electronics v.36 no.3 The development of digital servo algorithms for optical disc players Uekawa(et al.)
  6. Automatic control systems(6th ed.) B.C.Kuo
  7. Discrete-Time Signal Processing A.V.Oppenheim;R.W.Schafer