Article ID Journal Published Year Pages File Type
561618 Mechanical Systems and Signal Processing 2010 11 Pages PDF
Abstract

This paper proposes a method for the detection and quantification of nonlinear distortions in the output of a dynamic system. The basic idea is to use a nonstationary excitation that makes the nonlinear distortions also nonstationary, thus making possible their differentiation from stationary plant noise. The nonstationarity of the excitation allows the evolution of the system nonlinearity to be assessed in one single shot, thus greatly accelerating the experiment.

Related Topics
Physical Sciences and Engineering Computer Science Signal Processing
Authors
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