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- Cs. Banyasz, L. Keviczky
- 2008 World Automation Congress
- 2008

The sensitivity function in a generic two-degree of freedom (TDOF) control system can be decomposed into three major parts: design-, realizability- and modeling-loss. The paper investigates the optimality of the second term in infinite norm spaces and proposes a new iterative algorithm for the solution.

- L. Keviczky, Cs. Banyasz
- 2007 IEEE International Conference on Control…
- 2007

The paper investigates the H<sub>2</sub> optimality of the realizability loss in a decomposition of the sensitivity function for open-loop stable Youla-parametrized generic two-degree of freedom (TDOF) control systems. Conditions for integrating regulators are also introduced.

- Cs. Banyasz, L. Keviczky
- 2008 16th Mediterranean Conference on Control and…
- 2008

The sensitivity function can be decomposed into three major parts: design-, realizability- and modeling-loss. The paper investigates the optimality of the second term in infinite norm spaces and proposes a new iterative algorithm for the solution.

- Cs Bányász, L. Keviczky
- 22nd Mediterranean Conference on Control and…
- 2014

An equivalent transfer function representation (TFR) is introduced to study the state-feedback/observer (SFO) topologies of control systems. This approach is used to explain why an observer can radically reduce even large model errors. Then the same principle is combined with Youla-parameterization (YP) introducing a new class of regulators.

- L. Keviczky, Cs. Banyasz
- 2007 Mediterranean Conference on Control…
- 2007

The control error in a generic two-degree of freedom (TDOF) control system has three major parts: design, realizability, and modeling loss. The paper investigates the optimality of the second term in this decomposition and gives conditions when the optimal regulator is an integrating one.

- L. Keviczky
- 1999

AND INTRODUCTION Since 1978, there has been a history of successful cooperation between control researchers at the University of Minnesota and the Hungarian Academy of Sciences. This cooperative research effort was initially sponsored by the National Science Foundation in the late 1970's and early 1980's and later it has continued on an informal basis to… (More)

- Márk Kollai, Laszlo Fedina, Arisztid G . B . Kovach, L. Keviczky
- Computers and biomedical research, an…
- 1978

- L. Keviczky, Cs. Banyasz
- 2007 Mediterranean Conference on Control…
- 2007

The paper is a short tutorial like discussion on the applicability and the future of the classical Smith predictor. This evaluation shows that the Smith predictor is a subclass of the Youla parametrization based generic two-degree of freedom controllers. The application of the modern, new approach is suggested having much wider design possibilities.

- L. Keviczky, Cs. Banyasz
- Proceedings of the 2005 IEEE International…
- 2005

Error properties of a generic two-degree of freedom control system is investigated. It is shown that there is a considerable difference between inverse stable and inverse unstable processes. New direct relationships are introduced for identification and optimization errors. For inverse unstable case these errors consist of systematic and random parts. The… (More)

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