Cost of Cheap Decoupled
نویسندگان
چکیده
It is known that requiring a controlled system to be decoupled may increase costs in terms of some performance measures. However, decoupling may be desirable from an applied perspective. This paper gives an explicit quantiication of the costs of decoupling. In particular, the average quadratic tracking error is used to quantify performance. The analysis exploits the parametrisation of all decoupling controllers, together with Wiener-Hopf frequency domain techniques. The results allow rational choices to be made about the relative desirability of decoupling for particular applications .
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