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Transactions of the Institute of Systems, Control and Information Engineers Vol. 2 (1989), No. 7

ISIJ International
belloff
ONLINE ISSN: 2185-811X
PRINT ISSN: 1342-5668
Publisher: THE INSTITUTE OF SYSTEMS, CONTROL AND INFORMATION ENGINEERS (ISCIE)

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  1. Vol. 36 (2023)

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  2. Vol. 35 (2022)

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  3. Vol. 34 (2021)

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  4. Vol. 33 (2020)

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  5. Vol. 32 (2019)

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  6. Vol. 31 (2018)

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  7. Vol. 30 (2017)

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  8. Vol. 29 (2016)

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  9. Vol. 28 (2015)

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  10. Vol. 27 (2014)

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  11. Vol. 26 (2013)

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  23. Vol. 14 (2001)

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  25. Vol. 12 (1999)

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  26. Vol. 11 (1998)

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  27. Vol. 10 (1997)

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  28. Vol. 9 (1996)

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  29. Vol. 8 (1995)

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  30. Vol. 7 (1994)

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  31. Vol. 6 (1993)

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  32. Vol. 5 (1992)

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  33. Vol. 4 (1991)

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  34. Vol. 3 (1990)

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  35. Vol. 2 (1989)

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  36. Vol. 1 (1988)

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    3. No.5
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    5. No.3
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Transactions of the Institute of Systems, Control and Information Engineers Vol. 2 (1989), No. 7

Design of the Single-Input, Single-Output Type-1 Deadbeat Servo System by Minimizing the Deviation Input Energy

Eiji KONDO, Takanori KIYOTA, Teruo SUNAGA

pp. 223-230

DOI:

10.5687/iscie.2.223

Abstract

This paper discusses the design of a type-1 deadbeat servo system for a single-input, single-output discrete-time linear time-invariant system when the settling time is larger than the order of the controlled system. The type-1 deadbeat servo system is transformed into the deviation system. First, a theorem which relates the general deadbeat input is obtained. By using this theorem, the fixed terminal state problem is transformed into the free new terminal state problem. Then, the problem of minimizing the deviation input energy for the specified settling time is formulated, and the optimal deviation input is obtained implicitly by using the special Riccati equation. Finally, the optimal deviation input is obtained explicitly. This optimal feedback gain is independent of the initial state of the controlled system, the step command signal and the step disturbance.

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Fuzzy Modeling and Its Application to the Prediction of Oxidant Concentrations

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This paper gives a new method for computing a doubly coprime factorization of a transfer function matrix. From a polynomial matrix factorization, the method easily derives proper stable rational matrices which give a doubly coprime factorization. This paper also clarifies a relationship between this method and the well-known method which uses state-space representation.

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Necessary and sufficient conditions are derived for real rational functions with interval coefficients to be positive real or strictly positive real. In both cases, it is shown that checking positive realness or strict positive realness of only a finite number, sixteen, of functions are required to assure the same properties for the whole family. The main tools for these results are celebrated Kharitonov's theorem and its extended version, which have been paid attention to in these couple of years in association with robust stability problems.
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