Abstract: This 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.

Keyword(s): EEEIC ; Wigner distribution ; frequency
Note: Proceedings of the 7th Int. Conference EEEIC 2008, Cottbus, 5-11.05.2008, pp. 35-36


Fulltext : http://zet10.ipee.pwr.wroc.pl/record/171/files/

Cited by: try citation search for ENY-ARTICLE-2008-133

Ähnliche Datensätze

 

Benutzer, die diese Seite angeschaut haben, haben auch angeschaut:

(1295)  Impact of Distributed Generation on Electrical Power Network - Khan, U N - ENY-ARTICLE-2008-142 (1257)  Adaptacyjne sieci neuronowe w zastosowaniu do identyfikacji stanu układów elektrycznych - Kostyla, P - ENY-THESIS-2008-005 (1249)  Proceedings of the Int. Conference "7th EEEIC International Workshop on Environment and Electrical Engineering" - Schwarz, H et al - ENY-PREPRINT-2008-008 (1242)  Parametric methods for time-frequency analysis of electric signals - Leonowicz, Z - ENY-BOOK-2008-001 (1227)  Evaluation of compensation devices of DC arc furnaces using advanced spectrum estimation methods - Bracale, A et al - ENY-ARTICLE-2008-011

 

Dieses Dokument bewerten:

Als Erster ein Review für dieses Dokument verfassen