ESTIMATED METHOD OF THE STATE VARIABLE USING SLIDING MODE AND KALMAN FILTER

摘要

A method of estimating a state variable by using a sliding mode and extended Kalman filter is provided to eliminate uncertainty such as disturbance by using the sliding mode and minimize the influence of noise when a state estimator with respect to nonlinear systems is constructed. A state estimator estimates a state variable without differentiating the state variable. Uncertainty of the state variable is estimated in a time update process by using a sliding mode and measurement update is estimated by using an extended Kalman filter algorithm.