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A new method of designing a robust control law is proposed for a general class of nonlinear or linear systems with bounded uncertainties. The method uses the property that the Lyapunov function is not unique for a stable or stabilizable system. It is shown that the proposed control law normally guarantees the stability of the system if there are two Lyapunov functions whose null sets have a trivial...
A new method of designing a robust control law is proposed for a general class of nonlinear or linear systems with bounded uncertainties. The method uses the property that the Lyapunov function is not unique for a stable or stabilizable system. It is shown that the proposed control law normally guarantees the stability of the system if there are two Lyapunov functions whose null sets have a trivial...
Relationship Between Coherency, Controllability and Observability In state space analysis, controllability is a notion that measures the effect of an input to a particular state, while observability measures the effect of a state to the norm of the system's output vector. Uncontrollability and unobservability represent redundancy in the linear state space model. This paper presents the analytical...
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