LFT uncertain model validation with time and frequency domain measurements

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Conference Proceeding

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In this raper we study a model validation problem pertaining to linear fractional uncertainty models. We extend the previous validation approaches, based upon either time or frequency measurements, to one using simultaneously time and frequency domain data. We show that this problem can be reduced to two independent convex feasibility tests, each of which corresponds to the time or frequency domain data alone, and each can be verified numerically using available algorithms and software programs. The merit of such a mixed time and frequency domain approach, therefore, lies in that not only it can accommodate the two distinctively different types of measurement data simultaneously, but also from a computational standpoint it will not suffer from a complexity growth beyond that associated with the existing time domain tests.

Publication Source (Journal or Book title)

Proceedings of the IEEE Conference on Decision and Control

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