Model validation algorithm for characterizing parameters and uncertainty in a disc drive
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United States of America Patent
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-
Nov 2, 1999
Grant Date -
N/A
app pub date -
Feb 19, 1998
filing date -
Aug 7, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system and method validate a model used in implementing a model-based servo controller in a disc drive. A nominal model is first constructed. The nominal model is augmented with an uncertainty description to characterize variations in drives to be manufactured. The model is constrained by performance objectives. Weights corresponding to the uncertainty description and performance objectives are adjusted based on a comparison between a .mu. matrix function and a .mu..sub.g matrix function until a desired performance level is achieved while maintaining stability in a desired frequency range.
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