Passive Identification of Heat Equation Coefficients with Account for Errors in Estimating the State of the Object and Measuring System
A. Zh. Abdenov, G. A. Abdenova
L. N. Gumilyov Eurasian National University, ul. K. Satpayev 2 Astana, 010008, Republic of Kazakhstan
Keywords: уравнение теплопроводности, модель в пространстве состояний, метод конечных разностей, пассивная идентификация коэффициентов, фильтр Калмана, вейвлет-преобразование, heat equation, state-space model, finite-difference method, passive identification of coefficients, Kalman filter, wavelet transform
Pages: 141-147
Abstract
This paper describes the problem of passive identification of heat equation coefficients with account for the noise of the behavior of the object dynamics model and for the noise of the measuring system model. The use of the finite difference method allowed for reducing the solution of partial differential equations to the solution of a system of linear finite-difference and algebraic equations described by models in the form of a state space. Presentation of the heat equation in form of such a model makes it possible to apply the Kalman filter algorithm for the reliable estimation of the behavior of the object under study.
DOI: http://dx.doi.org/10.3103/S8756699016020059
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