Paper: A design procedure for multivariable regulators
Automatica (Journal of IFAC)
Paper: The internal model principle of control theory
Automatica (Journal of IFAC)
Paper: Decentralized control of linear multivariable systems
Automatica (Journal of IFAC)
Paper: Calculation of transmission zeros using QZ techniques
Automatica (Journal of IFAC)
Expository paper: Foundations of system theory: Decomposable systems
Automatica (Journal of IFAC)
Hi-index | 22.14 |
With the renewed emphasis in control theory on qualitative structural issues, as distinct from techniques of optimization, the last decade has brought significant growth in the application of geometric ideas to the formulation and solution of problems of controller synthesis. In this article we review the status of geometric state space theory as developed for application to systems that are linear, multivariable and time-invariant. After a brief summary of the underlying geometric concepts ((A, B)-invariant subspaces and (A, B)-controllability subspaces) we outline two standard problems of feedback control that have been successfully attacked from this point of view, and briefly survey recent results in a range of other topic areas. Then we discuss certain issues of methodology, and conclude with some remarks on computational procedures.