Identification of a fractional order model by a least squares technique: Hn1, n2 model

The present study deals with fractional modeling and identification of non-integer systems by least squares method (LS). Identification of fractional differentials equations (FDE) is investigated when estimating system parameters by a linear model with respect to parameters, as well as non-integer orders from temporal data (H_{n1, n2} model). Estimated parameters by LS method will be used for initialization of Output Error method (OE). Numerical simulations show the performance of the modal approach for modeling and identification.