摘要：AbstractThe discrete-time positive real lemma is examined and the assumptions of controllability and observability are removed. An intermediate theorem is proved that removes only the assumption of controllability. This work is intended to be the counterpart—and is inspired by—recent work on the continuous-time positive real lemma, and does not assume asymptotic stability unlike the recent results of Ferrante and Ntogramatzidis (2017).
关键词：KeywordsLinear systemstime invariant systemslinear multivariable systemsdiscrete-time positive real lemmapositive real systemspassive systems
