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The aim of this work is to present the results of a comparative study of two different least squares (LS) approach for estimation of non-integer order models. The first one use a repeated fractional integration and modal approach and the second one is based on Grunwald approximation. Both methods are explained in details and identification algorithms are elaborate.
A comparative study of methods for fractional system identification is presented in this paper. The fractional system is modeled by the help of a non integer integrator which is approximated by a J+1 dimensional modal system composed of an integrator and first order systems. This identification method is compared to other techniques available in the Matlab toolbox. The model parameters are estimated...
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