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Automatica (Journal of IFAC)
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Automatica (Journal of IFAC)
New developments in state estimation for nonlinear systems
Automatica (Journal of IFAC)
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Automatica (Journal of IFAC)
Automatica (Journal of IFAC)
A mathematical theory of psychological dynamics
WSEAS Transactions on Mathematics
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WSEAS Transactions on Mathematics
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In the present paper, for constructing the minimum risk estimators of state of stochastic systems, a new technique of invariant embedding of sample statistics in a loss function is proposed. This technique represents a simple and computationally attractive statistical method based on the constructive use of the invariance principle in mathematical statistics. Unlike the Bayesian approach, an invariant embedding technique is independent of the choice of priors. It allows one to eliminate unknown parameters from the problem and to find the best invariant estimator, which has smaller risk than any of the well-known estimators. Also the problem of how to select the total number of the observations optimally when a constant cost is incurred for each observation taken is discussed. To illustrate the proposed technique, examples are given.