航空学报 > 1998, Vol. 19 Issue (5): 603-607

具有结构不确定性因素的模型验证

石峰, 徐德民, 吴旭光   

  1. 西北工业大学32 号信箱, 西安, 710072
  • 收稿日期:1997-12-15 修回日期:1998-05-15 出版日期:1998-10-25 发布日期:1998-10-25

MODEL VALIDATION WITH STRUCTURED UNCERTAINTY

Shi Feng, Xu Demin, Wu Xuguang   

  1. Box 32, Northwestern Polytechnical University, Xi'an, 710072
  • Received:1997-12-15 Revised:1998-05-15 Online:1998-10-25 Published:1998-10-25

摘要:

研究了具有结构不确定性因素的系统线性分式变换(LFT)的模型验证问题,考虑如何同时基于时域和频域数据对模型进行验证,利用有关时域和频域混合数据的插值理论,提出了模型验证的混合途径及判别模型是否无效的必要条件。

关键词: 结构不确定性, 模型验证, LFT模型

Abstract:

The problem of model validation/invalidation pertaining to a linear fractional transformation(LFT) structured uncertainty model is studied. Model validation using simultaneously time and frequency domain data is considered here. As an application of the related theory of interpolation with mixed time/frequency domain data, a mixed approach and the necessary condition for model invalidation are presented.

Key words: str uct ur ed uncert ainty, model validation, LFT models

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