Identification and modeling of the nonlinear dynamic open loop systems

The problems of structural and parametric identification of nonlinear systems on the set of continuous block-oriented models, elements of which are different modification of Hammerstein and Wiener models, at the system´s deterministic input influences are considered. The problem of the structural identification is considered according to the classical definition of identification of Zadeh. The structure definition criterion of the model is developed. Parameters´ estimations are received by the method of the least squares by using Fourier approximation.