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A General Method for Nonlinear System Identification

A method to identify a large class of nonlinear system by a simple topology of parallel-cascaded structure is developed. This is an extension of the single branch model of the LNL(Linear-Nonlinear-Linear) structure as previously developed by the authors. Theorems are presented to prove its validity and the algorithm is developed for this general method of nonlinear system identification. A numerical example is presented to show the relative ease of this method.