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In this paper, we consider the state estimation problem for a class of nonlinear systems with second degree polynomial nonlinearities with noisy measurements. This class of nonlinearities is chosen based on the fact that they may lead to chaotic behavior for possible later use on chaotic communications applications. An unbiased state estimator is proposed having a quadratic structure and a parametric...
A class of discrete-time nonlinear system and measurement equations involving incrementally conic nonlinearities with finite energy disturbances is considered. A linear matrix inequality based design approach is presented that guarantees the satisfaction of a variety of performance criteria ranging from simple estimation error boundedness to dissipativity. Simple simulation examples are included to...
A new method for controlling a synchronous reluctance drive system using a sliding mode with fuzzy controller design is presented. The fuzzy controller is used to adjust the sliding line of the sliding-mode controller. Using this method, the system has a fast response and a good disturbance rejection capability. In addition, the chattering of the speed is reduced. In this work, the mathematical model...
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