document: Robust output-feedback control for linear continuous uncertain state delayed systems with unknown time delay The state-delayed time often is unknown and independent of other variables in most real physical systems . A new stability criterion for uncertain systems with a state time-varying delay is proposed . Then , a robust observer-based control law based on this criterion is constructed via the sequential quadratic programming method . We also develop a separation property so that the state feedback control law and observer can be independently designed and maintain closed-loop system stability . An example illustrates the availability of the proposed design method
doc_bio_tags: O O O O O O O B I I O O B I O O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O B I I O O O O O O O O O O O B I I I O O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: uncertain systems state delayed systems time delay sequential quadratic programming state feedback control law
abstractive_keyphrases: robust control output-feedback control linear continuous systems state time-varying delay observer-based control law closed-loop system stability