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State Estimation For Uncertain Systems With Arbitrary Quadratic Nonlinearity

Tatiana F. Filippova
This paper deals with the state estimation problem for uncertain dynamical control systems with a special structure, in which the nonlinear terms in the right-hand sides of related differential equations are quadratic in state coordinates. We do not impose the condition of positive definiteness of the quadratic nonlinearity in the system. The external ellipsoidal estimates of reachable sets of the system are constructed assuming that initial system states are unknown but bounded.
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