Identification of errors-in-variables state space models with observation outliers based on minimum covariance determinant |
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Authors: | Jaafar AlMutawa |
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Affiliation: | Department of Mathematics and Statistics, King Fahd University of Petroleum and Minerals, P.O. Box 158, Dhahran 31261, Saudi Arabia |
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Abstract: | In this paper, a subspace system identification algorithm for the errors-in-variables (EIV) state space models subject to observation noise with outliers has been developed. By using the minimum covariance determinant (MCD) estimator, the outliers have been identified and deleted. Then the classical EIV subspace system identification algorithms have been applied to estimate the parameters of the state space models. In order to solve the MCD problem for the EIV state space models, a random search algorithm has been proposed. A Monte-Carlo simulation results demonstrate the effectiveness of the proposed algorithm. |
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