Fast detection of system nonlinearity using nonstationary signals

Erliang Zhang; J. Antoni; Rik Pintelon; Joannes Schoukens

Fast detection of system nonlinearity using nonstationary signals

Erliang Zhang, J. Antoni, Rik Pintelon, Joannes Schoukens

Electricity

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

This pape 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.

Original language	English
Pages (from-to)	2065-2075
Number of pages	11
Journal	Mechanical Systems and Signal Processing
Volume	24
Publication status	Published - 1 Aug 2010

Keywords

nonlinearity
nonstationary

Cite this

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title = "Fast detection of system nonlinearity using nonstationary signals",

abstract = "This pape 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.",

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T1 - Fast detection of system nonlinearity using nonstationary signals

AU - Zhang, Erliang

AU - Antoni, J.

AU - Pintelon, Rik

AU - Schoukens, Joannes

PY - 2010/8/1

Y1 - 2010/8/1

N2 - This pape 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.

AB - This pape 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.

KW - nonlinearity

KW - nonstationary

M3 - Article

VL - 24

SP - 2065

EP - 2075

JO - Mechanical Systems and Signal Processing

JF - Mechanical Systems and Signal Processing

SN - 0888-3270

ER -

Fast detection of system nonlinearity using nonstationary signals

Abstract

Keywords

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Cite this