On The State Observation And Output-Feedback Problems For Nonlinear Uncertain Dynamic-Systems
Title - Alternative
Syst. Control Lett.
ROBUST CONTROL; OBSERVER; OUTPUT FEEDBACK; NONLINEAR SYSTEMS; EXPONENTIAL CONVERGENCE; OBSERVERS; Automation & Control Systems; Operations Research & Management Science
In this paper, we examine the problems of state observation and state trajectory control by output feedback for the class of non-linear systems in [3,11]. We begin by modifying a known discontinuous variable structure type observer into a continuous type observer that guarantees the observation error is Globally Exponentially Stable (GES). We then modify a known discontinuous variable structure type output feedback controller into continuous type output feedback controller that forces the state to the origin in the GES sense. Specific time-varying bounds on the observation error and the state trajectory are also developed; revealing how the corresponding observer or control parameters can be adjusted to improve the system performance.
Systems & Control Letters
Dawson, D M.; Qu, Z; and Carroll, J C., "On The State Observation And Output-Feedback Problems For Nonlinear Uncertain Dynamic-Systems" (1992). Faculty Bibliography. 2029.