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Overview:
This paper presents a new technique for track-following control in hard disk drives, in order to achieve high tracking precision of magnetic read-write heads uniformly for a huge number of disk drives. The basic idea in this technique is to classify the disk drives into several sets depending on dynamics properties, and to apply a robust controller to each set. The problem of designing the optimal classification of dynamics and corresponding optimal robust controllers is formulated as a nonconvex optimization problem, for which suboptimal solutions are to be found numerically. A numerical simulation shows the usefulness of the proposed technique, by illustrating a tracking performance improvement.
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| Format: | Size: | 706 KB | |
| Date: | Apr 2007 | ||
| Pages: | 13 |
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