In recent years, Empirical mode decompositionand Hilbert spectral analysis have been combined to identifysystem parameters. Singular-Value Decomposition is proposedas a signal preprocessing technique of Hilbert-HuangTransform to extract modal parameters for closely spacedmodes and low-energy components. The proposed methodis applied to a simulated airplane model built in AutomaticDynamic Analysis of Mechanical Systems software. Theresults demonstrate that the identified modal parameters arein good agreement with the baseline model.
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