Inspec keywords: matrix algebra; frequency-domain synthesis; discrete time systems; state-space methods; transfer functions

Other keywords: Lefschetz-Kalman-Yakubovich lemma; discrete-time version; discrete-time linear time-invariant systems; frequency domain; control systems; continuous linear time-invariant system; state space domains; positive real transfer matrices

Subjects: Discrete control systems; Control system analysis and synthesis methods; Algebra