Volume 5, Issue 4 (Journal of Control, V.5, N.4 Winter 2012)
JoC 2012, 5(4): 65-71 |
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Ghadiri-Modarres M A, Mojiri M, Karimi B. Parameter Estimation of an Exponentially Damped Sinusoidal Signal Using Adaptive Identifier. JoC 2012; 5 (4) :65-71
URL: http://joc.kntu.ac.ir/article-1-77-en.html
URL: http://joc.kntu.ac.ir/article-1-77-en.html
Abstract: (10734 Views)
This paper presents an adaptive identifier based algorithm for online estimation of damping factor and frequency of an exponentially damped sinusoidal signal. The algorithm is based on an adaptive identifier which is a theoretical tool for the estimation of the parameters of an unknown linear system. The governing equations of the proposed algorithm are composed of a second order linear filter and two update laws that provide indirect estimation of the frequency and damping factor. Local stability analysis of the proposed method is presented using averaging theory. Simulation results confirm the analytical derivations and also the desirable performance of the proposed algorithm.
Keywords: Exponentially damped sinusoidal signal, Frequency, Damping factor, Adaptive identifier, Averaging theory.
Type of Article: Research paper |
Subject:
Special
Received: 2014/06/15 | Accepted: 2014/06/15 | Published: 2014/06/15
Received: 2014/06/15 | Accepted: 2014/06/15 | Published: 2014/06/15
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