Title :
Evolutionary biperiodogram
Author_Institution :
Dept. of Electr. & Electron. Eng., Hacettepe Univ., Ankara, Turkey
fDate :
30 May-2 Jun 1994
Abstract :
In this paper, we extend the definition of the evolutionary spectrum to the evolutionary bispectrum. Using a model previously proposed for estimation of the evolutionary spectrum for nonstationary signals we propose an estimator of the third order moment for nonstationary signals. We also propose an estimator of the evolutionary bispectrum which we call the evolutionary biperiodogram (EBP). We show that it is possible to use window functions to smooth out the EBP. Finally we apply the proposed estimator to a time-varying signal
Keywords :
Displays; Fourier transforms; Frequency; Linearity; Random processes;
Conference_Titel :
Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-1915-X
DOI :
10.1109/ISCAS.1994.408995
