Reis, TimoTimoReisWillems, Jan C.Jan C.Willems2024-03-262024-03-262011Systems and Control Letters 60 (1): 69-74 (2011)https://hdl.handle.net/11420/46735This paper addresses the realization of positive real transfer functions which are symmetric with respect to some signature matrix. We show that a realization that is jointly internally reciprocal and internally passive can be achieved by positive real balancing.en1872-7956201116974ElsevierBalanced realizationsPassivePositive realReciprocalSign symmetricMathematicsJournal Article10.1016/j.sysconle.2010.10.009Journal Article