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Keywords:

nonlinear distortions, identification, Science & Technology, Technology, Engineering, Mechanical, Engineering, 0905 Civil Engineering, 0913 Mechanical Engineering, 0915 Interdisciplinary Engineering, Acoustics, 4006 Communications engineering, 4017 Mechanical engineering

Abstract:

In [3] the measurement and modelling of linear systems in the presence of non-linear distortions has been studied for a special class of periodic excitation signals. This paper extends the theory of [3] to more general classes of (periodic) excitation signals. Also, enhanced properties of the best linear approximation and the stochastic non-linear distortions are obtained. The theory is illustrated on a simulation and a real measurement example. (C) 2002 Elsevier Science Ltd. All rights reserved.