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Model validation algorithm for characterizing parameters and uncertainty in a disc drive
Model validation algorithm for characterizing parameters and uncertainty in a disc drive
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机译:用于验证磁盘驱动器中参数和不确定性的模型验证算法
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摘要
A system and method validate a model used in implementing a model-based servo controller (190) in a disc drive (110). A nominal model is first constructed. The nominal model is augmented with an uncertainty description (202, 204) 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 Iž/I matrix function and a Iž/ISBg/SB matrix function until a desired performance level is achieved while maintaining stability in a desired frequency range.
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机译:一种系统和方法验证用于在磁盘驱动器(110)中实现基于模型的伺服控制器(190)中使用的模型。首先构建名义模型。标称模型增加了不确定性描述(202、204),以表征要制造的驱动器中的变化。该模型受性能目标的约束。根据ž I>矩阵函数与ž I> g SB>矩阵函数之间的比较来调整与不确定性描述和性能目标相对应的权重,直到达到所需的在保持所需频率范围内稳定性的同时达到了性能水平。
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