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Thesis / ENY-THESIS-2008-001

Zaawansowane metody analizy widmowej sygnałów elektrycznych

Leonowicz, Z (Politechnika Wrocławska)

2000-03-16

Abstract: I argue in my dissertation that the use of modern high-resolution spectrum estimation methods, such as Min-Norm, Wigner-Ville distribution and combination of these with higher-order statistics (cumulants), provide more possibilities of analysis of highly distorted electrical signals than known methods of spectrum estimation based on Fourier transform. High-resolution spectrum estimation method, such as Min-Norm combined with the use of higher-order statistics could be effectively used for parameter estimation of distorted signals. A new method of visualization of frequency converter supplied drives by means of a static space-phasor was developed as a compact observation and diagnosis method. Statistical properties (estimation error) of the investigated methods for different multi-component signals were analyzed. Spectrums of the space-phasor and of the real-valued signals have been investigated under different operation conditions using the Min-Norm method , Wigner-Ville distribution and power spectrum.


Fulltext : http://zet10.ipee.pwr.wroc.pl/record/6/files/

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Rekord stworzony 2008-03-05, ostatnia modyfikacja 2008-03-09

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