Multipurpose controller synthesis in discrete lqg optimal systems

Wen June Wang, Tsu Tian Lee

Research output: Contribution to journalArticlepeer-review


This paper presents a design algorithm to synthesize a discrete-time linear-quadraticgaussian (LQG) optimal controller that simultaneously ensures (i) input-output decoupling; (ii) pole and zero placement; and (iii) robust stability in the presence of plant perturbation. Two weighting matrices Q(Z) and R(Z) of the quadratic cost functional are shaped to synthesize an optimal controller to achieve the stated design goals.

Original languageEnglish
Pages (from-to)1105-1118
Number of pages14
JournalInternational Journal of Control
Issue number3
StatePublished - Sep 1987


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