Parameter estimation of discrete-time sinusoidal signals: A nonlinear control approach

• Autores: Teng Jiang, Dabo Xu, Tianshi Chen, Andong Sheng
• Localización: Automatica: A journal of IFAC the International Federation of Automatic Control, ISSN 0005-1098, Nº. 109, 2019
• Idioma: inglés
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• Resumen

  • This paper considers a parameter estimation problem for discrete-time sinusoidal signals in the presence of measurement noise. Different from most of existing methods, we shall solve the problem based on nonlinear control theory. Specifically, we introduce a constructive nonlinear estimator that enables us to prove an interesting input/output stability property from measurement noise to estimation error. To show efficacy of the proposed method, we also present several numerical examples using different types of signals and noises.