The control issues, as applied to structures, include precise positioning or tracking. It is expected that the positioning and tracking requirements should be satisfied for structures with natural frequencies within the controller bandwidth and within the disturbance spectra. LQG (Linear system, Quadratic cost, Gaussian noise) controllers can typically meet these conditions and they are often used for tracking and disturbance rejection purposes. A good insight into the problems of analysis and design of LQG controllers can be obtained from the books by Kwakernaak and Sivan , Maciejowski , Anderson and Moore , Furuta, Sano, and Atherton , Lin , Skogestad and Postlethwaite , Dorato, Abdallah, and Cerone , Burl , and Fairman .
KeywordsTransfer Function Reduction Index Controller Reduction Tracking Subsystem Pole Mobility
Unable to display preview. Download preview PDF.