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Prony's method versus FFT for analyzing power converters signals

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4 Author(s)
Costa, F.F. ; Universidade Federal de Campina Grande, Campinas ; Fernandes, D.A. ; de Almeida, L.A.L. ; Naidu, S.R.

This paper compares the Prony's method and the fast Fourier transform (FFT), for analyzing signals of power electronic devices, particularly power converters. The theoretical features of both techniques are analyzed and their differences are highlighted. The two techniques have been applied to synthetic signals that emulate converter signals. The results show that Prony is a good alternative when one is dealing with short-time windows of analyzed signals although is sensitive to noise

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Power Electronics and Applications, 2005 European Conference on

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