文章基本信息

标题：Estimation of Damped Sinusoidal Signals: an Observer-Based Approach
本地全文：下载
作者：Yang Wang ; Boli Chen ; Gilberto Pin 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2017
卷号：50
期号：1
页码：3811-3816
DOI：10.1016/j.ifacol.2017.08.486
语种：English
出版社：Elsevier
摘要：AbstractThis paper presents a novel observer-based method for estimating the parameters of an exponentially damped sinusoid, including the frequency, amplitude, phase and the damping factor. A second-order sliding-mode-based adaptation law is designed for estimating the frequency and the damping factor, while amplitude and phase are obtainable from the said parameters by straightforward algebra. The stability and robustness analysis in presence of an additive disturbance proves the existence of a tuning parameter set for which the estimator’s dynamics are asymptotic stable and the estimation error asymptotically converges to a residual set whose size depends on the amplitude of the disturbance. Numerical and comparative examples show the effectiveness of the proposed estimation approach.
关键词：Keywordsdamped sinusoidal signalsinusoidal estimationobserverssliding-mode