K
Kok Kia Chew
Researcher at University of California, Berkeley
Publications - 3
Citations - 618
Kok Kia Chew is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: Control theory & Servo. The author has an hindex of 3, co-authored 3 publications receiving 612 citations.
Papers
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Journal ArticleDOI
Digital control of repetitive errors in disk drive systems
Kok Kia Chew,Masayoshi Tomizuka +1 more
TL;DR: A modified prototype repetitive controller is applied as a plug-in module to a Winchester disk drive with a preexisting analog feedback controller to demonstrate its efficacy in the reduction of this periodic component.
Proceedings ArticleDOI
Digital Control Of Repetitive Errors In Disk Drive Systems
Kok Kia Chew,Masayoshi Tomizuka +1 more
TL;DR: Three specialized digital controllers applied as plug-in modules to a winchester disk drive with a pre-existing analog feedback controller to demonstrate their efficacy in the reduction of this periodic component of tracking errors.
Journal ArticleDOI
Steady-State and Stochastic Performance of a Modified Discrete-Time Prototype Repetitive Controller
Kok Kia Chew,Masayoshi Tomizuka +1 more
TL;DR: In this paper, the rigid stability requirement is relaxed by including an appropriately chosen filter in the repetitive signal generator, and the performance of the modified scheme is evaluated by applying it to a simulated disk-file actuator system.