A parameterization of continuous-time passive systems (positive real transfer functions) with given poles is proposed. This parameterization has a minimum number of parameters and is suited to convex optimization, especially for semidefinite programming. As an example, we show how to find the best approximation of a stable transfer function with a positive real one, with the same poles
Published in:
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
(Volume:49
,
Issue:
4
)
Date of Publication: Apr 2002