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The AAA framework for modeling linear dynamical systems with quadratic output (2005.10316v1)
Published 20 May 2020 in math.NA, cs.NA, cs.SY, eess.SY, and math.DS
Abstract: We consider linear dynamical systems with quadratic output. We first define the two transfer functions, a single-variable and a multivariate one, that fully describe the dynamics of these special nonlinear systems. Then, using the samples of these two transfer functions, we extend the AAA algorithm to model linear systems with quadratic output from data.
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