Title :
Discrete linear quadratic output feedback control with integrator for holographic data storage system
Author :
Lee, YongHee ; Kim, Sang-Hoon ; Kim, Jang Hyun ; Yang, Hyunseok ; Park, Young-Pil
Author_Institution :
Dept. of Mech. Eng., Yonsei Univ., Seoul
Abstract :
In this paper, we focus on effects of radial deviation on the disk and propose a tracking error compensation method for the holographic data storage system (HDSS) that uses a disk type media. In our HDSS, when the tracking error is detected, the error compensation is achieved by a piezo actuator. A tracking servo controller is suggested, and the validity of the servo control is verified with simulation results.
Keywords :
discrete systems; feedback; holographic storage; linear quadratic control; piezoelectric actuators; servomechanisms; tracking; discrete linear quadratic output feedback control; holographic data storage system; piezoactuator; radial deviation; tracking error compensation method; tracking servo controller; Actuators; Control systems; Data storage systems; Disk recording; Holography; Laser beams; Linear feedback control systems; Output feedback; Servomechanisms; Servosystems; Holographic data storage; linear quadratic control; tracking servo control;
Conference_Titel :
Control, Automation and Systems, 2008. ICCAS 2008. International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-89-950038-9-3
Electronic_ISBN :
978-89-93215-01-4
DOI :
10.1109/ICCAS.2008.4694533
