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- W2022186775 abstract "This paper investigates the use of weighting matrices to improve the harmonic balance identification (HBID) method for identifying nonlinear oscillators. While the notation for adding weighting matrices has been previously introduced, typical strategies for developing weighting matrices cannot be applied to the HBID method since the variance structure of each observation is identical. A new approach is presented based on the signal to noise ratio of each harmonic. This new weighting strategy is shown to improve the accuracy of the estimated parameters from data with Gaussian, uniform, and Laplacian noise distributions. In addition, the paper explores the relationship between the accuracy of the estimated parameters and the range of phase space transversed by a steady-state response. It is shown that small oscillations in a double well oscillator can be used to accurately estimate the system parameters." @default.
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- W2022186775 date "2013-06-01" @default.
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- W2022186775 title "On the use of weighting matrices to improve harmonic balance parameter identification results" @default.
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- W2022186775 doi "https://doi.org/10.1016/j.jsv.2013.01.010" @default.
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