Repozytorium Eny Politechnika Wrocławska

Repozytorium W. Elektrycznego Politechniki Wrocławskiej Znaleziono 13 rekordów  1 - 10następny  skocz do rekordu: Szukanie trwało 0.01 sekund. 
1.
Analysis of Non-Stationary Signals in Power Systems using Wigner Transform and Min-Norm Method / Leonowicz, Z [ENY-PREPRINT-2008-005]
Time-varying spectra of non-stationary time-series commonly used are spectrograms from the Short-Time Fourier Transform (STFT). [...]
http://zet10.ipee.pwr.wroc.pl/record/88/files/
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2.
Spectrum estimation of non- stationary signals in power systems / Leonowicz, Z ; Lobos, T ; Rezmer, J [ENY-ARTICLE-2008-038]
Time-varying spectra of non-stationary time-series commonly used are spectrograms from the Short-Time Fourier Transform (STFT). [...]
http://zet10.ipee.pwr.wroc.pl/record/46/files/
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3.
Modern spectral analysis of non-stationary signals in electrical power systems / Leonowicz, Z ; Lobos, T ; Schegner, P [RZ I07/2002/I-048] [ENY-ARTICLE-2009-251]
A novel approach to harmonic and interharmonic analysis, based on the “subspace” methods, is proposed. [...]
http://zet10.ipee.pwr.wroc.pl/record/312/files/
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4.
Analysis of non-stationary signals in power systems / Leonowicz, Z [ENY-ARTICLE-2008-002]
Classical techniques to estimate the spectrum of the multi-component signal are based on Fourier-based transformations. [...]
http://zet10.ipee.pwr.wroc.pl/record/2/files/
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5.
Zaawansowane metody analizy widmowej sygnałów elektrycznych / Leonowicz, Z [ENY-THESIS-2008-001]
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. [...]
http://zet10.ipee.pwr.wroc.pl/record/6/files/
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6.
Parametric methods for time-frequency analysis of electric signals / Leonowicz, Z [ISSN 0324-945x] [ENY-BOOK-2008-001]
The author presents a new approach to spectral analysis of electric signals and related problems encountered in power systems. [...]
http://zet10.ipee.pwr.wroc.pl/record/11/files/
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7.
Analyse nicht stationärer Signale in Energiesystemen / Janik, P ; Leonowicz, Z ; Schegner, P [I07/01/I-073] [ENY-ARTICLE-2008-051]
Klassische Methoden der Spektralanalyse von diskret abgetasteten Signalen mit vielen spektralen Anteilen basieren meistens auf der Fourier-Transformation. [...]
http://zet10.ipee.pwr.wroc.pl/record/60/files/
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8.
Detection of the Fundamental Harmonic of Distorted Signals using Min-Norm Method / Lobos, T ; Leonowicz, Z ; Piotrowicz, J [ENY-ARTICLE-2008-030]
Spectrum analysis is a fundamental tool for diagnostic purposes widely used in monitoring and diagnostic systems. [...]
http://zet10.ipee.pwr.wroc.pl/record/37/files/
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9.
Advanced Spectrum Estimation Methods for Signal Analysis in Power Electronics / Leonowicz, Z ; Lobos, T ; Rezmer, J [ENY-ARTICLE-2008-003]
Modern frequency power converters generate a wide spectrum of harmonics components. [...]
http://zet10.ipee.pwr.wroc.pl/record/3/files/
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10.
Analysis of power quality disturbances using the S-Transform / Leonowicz, Z ; Lobos, T ; Wozniak, K [I07/2007/I-009] [ENY-ARTICLE-2008-111]
The method presented in this paper employs recently introduced S-transform which is an important development of STFT with improved properties. [...]
http://zet10.ipee.pwr.wroc.pl/record/140/files/
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