Observability of decoupled time-varying multivariable systems |
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| Authors: | Freund E. |
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| Affiliation: | Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., Institut für Dynamik der Flugsysteme, Oberpfaffenhofen, West Germany; |
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| Abstract: | The decoupling of a time-varying multivariable system by state-variable feedback does not guarantee the observability of the decoupled system. In the letter, a necessary and sufficient condition is derived for the observability of these systems in the time-variable case. |
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