Control design for self-servo track writing using a state-space disturbance observer
Control design for self-servo track writing using a state-space disturbance observer
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DOI：
10.1109/tmag.2009.2029626
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发表时间：
2009-05
期刊：
影响因子：
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通讯作者：
H. Kang;C. Lee;C. Chung
中科院分区：
文献类型：
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作者：
H. Kang;C. Lee;C. Chung
本文提出了一种基于状态空间扰动观测器（DOB）的自伺服磁道写入控制方案。针对反馈控制器设计了一种具有状态空间DOB的LQG/LTR控制器。此外，设计了参考校正信号的前馈控制，以防止径向误差的传播。仿真结果验证了该方法的有效性，表明该方法在直流轨道间距和交流轨道挤压的写入轨道的改善。
In this paper, we introduce a control scheme for self-servo track writing process using a state-space disturbance observer (DOB). An LQG/LTR controller with the state-space DOB is designed for feedback controller. In addition, feedforward control for reference correction signal is designed to prevent the radial error propagation. The proposed method is validated by simulation results which show improvements in DC track spacing and AC track squeeze of the written tracks.