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000000088 001__ 88
000000088 037__ $$aENY-PREPRINT-2008-005
000000088 041__ $$aeng
000000088 100__ $$aLeonowicz, Z$$uWroclaw University of Technology, Poland
000000088 245__ $$aAnalysis of Non-Stationary Signals in Power Systems using Wigner Transform and Min-Norm Method
000000088 260__ $$c2008-01-30
000000088 300__ $$a4p
000000088 500__ $$aProceedings of the 7th Int. Conference EEEIC 2008, Cottbus, 5-11.05.2008, pp. 43-46
000000088 520__ $$aTime-varying spectra of non-stationary time-series commonly used are spectrograms from the Short-Time Fourier Transform (STFT). The most prominent limitation of the Fourier Transform is that of frequency resolution. To overcome the limitations the Wigner-Ville Distribution and the Min-Norm subspace method have been applied for spectrum estimation of non-stationary signals caused by switching on capacitor banks and by a short circuit at the output of a frequency converter. Investigation results confirm the advantages of the advanced methods.
000000088 6531_ $$aEEEIC
000000088 8560_ $$fzbigniew.leonowicz@pwr.wroc.pl
000000088 8564_ $$uhttp://zet10.ipee.pwr.wroc.pl/record/88/files/$$zAccess to Fulltext
000000088 909CO $$ooai:zet10.pwr.wroc.pl:88$$pglobal
000000088 980__ $$aPREPRINT