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A globally convergent estimator for n-frequencies

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3 Author(s)
Obregón-Pulido, G. ; Centro de Investigacion y de Estudios Avanzados del IPN, Guadalajara, Spain ; Castillo-Toledo, B. ; Loukianov, A.

In this paper, we propose a solution to the well-known problem of ensuring a simultaneous globally convergent online estimation of the state and the frequencies of a sinusoidal signal composed of n sinusoidal terms. We present an estimator which guarantees global boundedness and convergence of both the state estimation and the frequency estimation for all initial conditions and frequency values

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Automatic Control, IEEE Transactions on  (Volume:47 ,  Issue: 5 )