Sensitivity Considerations in the Control of Generalized Plants

Panos J. Antsaklis and O.R. Gonzalez

Proceedings of the 1989 IEEE Transactions on Automatic Control
Vol. 34, No. 8, pp. 885-888, August 1989

Abstract - A new comparison sensitivity matrix is derived for a generalized plant where the controlled and measured variables are not necessarily the same. In addition, the sensitivity of the control signal to plant and controller parameter variations is characterized. It is shown that sensitivity reduction is possible only when the controlled and measured variables are appropriately related. Furthermore, a relation between comparison sensitivity and exogenous signal attenuation is shown.

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