Title :
The generalized evolutionary spectrum
Author :
Detka, C.S. ; El-Jaroudi, A.
Author_Institution :
Dept. of Electr. Eng., Pittsburgh Univ., PA, USA
fDate :
11/1/1996 12:00:00 AM
Abstract :
Evolutionary spectral theory defines a decomposition of signal energy jointly over time and frequency by assuming that processes are composed of sinusoidal components with time-dependent amplitudes. We expand this theory by allowing time variations in the frequency of the sinusoidal components. Examples are presented illustrating the advantages of this generalization
Keywords :
spectral analysis; time-frequency analysis; decomposition; evolutionary spectral theory; generalized evolutionary spectrum; signal energy; sinusoidal components; time variations; time-dependent amplitudes; Computational modeling; Discrete event simulation; Filtering; Frequency; Limiting; Real time systems; Signal processing; Signal processing algorithms; Speech processing; Throughput;
Journal_Title :
Signal Processing, IEEE Transactions on
