International Journal of Control · 1977 · 32 citations · 5 references
EngineeringMathematicsSystems EngineeringComplex SystemsDynamical SystemsSystem DynamicsControl Of Dynamical SystemsControl SystemsControl TheoryMultivariable ControlState EstimationSystems Of Differential EquationsDisturbance Observer DesignNonlinear ObserversObserver DesignObserver Design For Nonlinear SystemsPiecewise Polynomial ApproximationState Observer DesignState ObserversState Vector Estimation
The problem of observing the state vector of a multivariable system subjected to inaccessible inputs is considered. Using a polynomial-type approximation for these inputs, a set of necessary and sufficient conditions that can be readily applied to determine the existence of an observer is obtained. Computer simulation results for a third-order two-input, two-output system are included.
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