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Exponentially discounted estimates and oscillations in linear controlled systems. (English) Zbl 0771.93032
Summary: Slow unmodelled oscillations of a system are regarded as a parameter and estimated by the discounted least squares method. The estimate is used to eliminate the oscillations. Properties of the procedure are presented for vanishing discount factor. The application is shown on the example of a computer controller system.
MSC:
93C05 Linear systems in control theory
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References:
[1] K.J. Äström, B. Wittenmark: Computer Controlled Systems. Prentice-Hall, Englewood Cliffs 1984.
[2] K.J. Äström, B. Wittenmark: Adaptive Control. Addison-Wesley, Reading 1989.
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