Abstract
Tilt error can affect a serious effect to holographic data storage system using angle(polytopic) multiplexing. Because the tolerance about tilt error is very tight it is important to measure the tilt error and compensate it. In this paper, tilt error measurement system with additional red laser and reflection geometry is suggested and servo control experiments are conducted. A servo controller to compensate tilt error is designed using disturbance observer. Amount of tilt is decreased smaller than 0.01 degree and signal-to-noise ratio is increased with the tilt servo controller when 0.216 degree of tilt disturbance is applied.
| Original language | English |
|---|---|
| Article number | 4815995 |
| Pages (from-to) | 2248-2251 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 45 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2009 May 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
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Tilt Error Measurement and Compensation Method for the Holographic Data Storage System Using Disturbance Observer. / Kim, Sang Hoon; Kim, Jang Hyun; Lee, Yonghee; Yang, Hyun Seok; Park, Joo Youn; Park, Kyoung Su; Park, Young Pil.
In: IEEE Transactions on Magnetics, Vol. 45, No. 5, 4815995, 01.05.2009, p. 2248-2251.Research output: Contribution to journal › Article
TY - JOUR
T1 - Tilt Error Measurement and Compensation Method for the Holographic Data Storage System Using Disturbance Observer
AU - Kim, Sang Hoon
AU - Kim, Jang Hyun
AU - Lee, Yonghee
AU - Yang, Hyun Seok
AU - Park, Joo Youn
AU - Park, Kyoung Su
AU - Park, Young Pil
PY - 2009/5/1
Y1 - 2009/5/1
N2 - Tilt error can affect a serious effect to holographic data storage system using angle(polytopic) multiplexing. Because the tolerance about tilt error is very tight it is important to measure the tilt error and compensate it. In this paper, tilt error measurement system with additional red laser and reflection geometry is suggested and servo control experiments are conducted. A servo controller to compensate tilt error is designed using disturbance observer. Amount of tilt is decreased smaller than 0.01 degree and signal-to-noise ratio is increased with the tilt servo controller when 0.216 degree of tilt disturbance is applied.
AB - Tilt error can affect a serious effect to holographic data storage system using angle(polytopic) multiplexing. Because the tolerance about tilt error is very tight it is important to measure the tilt error and compensate it. In this paper, tilt error measurement system with additional red laser and reflection geometry is suggested and servo control experiments are conducted. A servo controller to compensate tilt error is designed using disturbance observer. Amount of tilt is decreased smaller than 0.01 degree and signal-to-noise ratio is increased with the tilt servo controller when 0.216 degree of tilt disturbance is applied.
UR - http://www.scopus.com/inward/record.url?scp=65349147631&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=65349147631&partnerID=8YFLogxK
U2 - 10.1109/TMAG.2009.2016238
DO - 10.1109/TMAG.2009.2016238
M3 - Article
VL - 45
SP - 2248
EP - 2251
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 5
M1 - 4815995
ER -