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000000171 001__ 171
000000171 037__ $$aENY-ARTICLE-2008-133
000000171 041__ $$aeng
000000171 100__ $$aSikorski, T$$uWroclaw University of Technology
000000171 245__ $$aInstantaneous Frequency Calculation Using Wigner  Distribution 
000000171 260__ $$c2008-04-06
000000171 300__ $$a2p
000000171 500__ $$aProceedings of the 7th Int. Conference EEEIC 2008, Cottbus, 5-11.05.2008, pp. 35-36
000000171 520__ $$aThis paper introduces two-dimensional methods of observation and diagnosis of non-stationary signals in electrical engineering as well as its further application in instantaneous frequency calculation. The investigations are carried out on two levels: firstly, two-dimensional representations are obtained applying Wigner Distribution, then local frequency moments are calculated to achieve one-dimensional characteristics of instantaneous frequency. It is shown that such characteristic preserves information about the nonstationarity in time domain and can be used for detection and duration of transient states.
000000171 6531_ $$aEEEIC
000000171 6531_ $$aWigner distribution
000000171 6531_ $$afrequency
000000171 8560_ $$fzbigniew.leonowicz@pwr.wroc.pl
000000171 8564_ $$uhttp://zet10.ipee.pwr.wroc.pl/record/171/files/$$zAccess to Fulltext
000000171 909CO $$ooai:zet10.pwr.wroc.pl:171$$pglobal
000000171 980__ $$aARTICLE