Decentralized observer-based tracker for analog systems with saturating actuator and state constraints
A weighted switching strategy and an inner-loop compensator are presented in this paper to design an observer-based tracker for a decentralized closed-loop cascaded system with a saturating actuator and state constraints. The LQR design methodology for the observer-based tracker is proposed to simplify the complexity of the decentralized control. The realizable sample-data controller with a low-gain property and a high design performance is realized through the digital redesign method. For obtaining a better design performance, evolutionary programming is then presented to tune the parameters of the tracker. Some examples are also presented to demonstrate the effectiveness of the proposed methodology. (c) 2007 Elsevier Ltd. All rights reserved.
observer-based tracker decentralized control digital redesign evolutionary programming input and state saturations