Parameter identification of time-delayed nonlinear systems: An integrated method with adaptive noise correction

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Journal Article
Journal of the Franklin Institute-Engineering and Applied Mathematics, 2019, 356, (11), pp. 5858-5880
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© 2019 The Franklin Institute This paper proposes a novel method called the adaptive-noise-correction integrated parameter identification (ANCPI) for time-delayed nonlinear systems. Compared with the existing de-noising techniques, the significance of the proposed method is the use of the system itself to correct the noise-polluted components so that the accuracy of parameter identification is enhanced. To achieve the goal of adaptive noise correction, this study starts from the case of periodic response and then parameterizes the noise correction as the coefficient correction of harmonic basis. In this way, the parameter identification integrated with noise correction can be performed as the parameter optimization of the error function. For the convenience of application, a user-friendly program package is further provided and a detailed tutorial is presented in the supplementary material.
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