Title :
Instantaneous kurtosis
Author :
Loughlin, Patrick J. ; Davidson, Keith L.
Author_Institution :
Dept. of Electr. Eng., Pittsburgh Univ., PA, USA
fDate :
6/1/2000 12:00:00 AM
Abstract :
We introduce the concept of the instantaneous kurtosis of a signal. Using the general approach of Cohen (1993), we obtain an explicit expression in terms of the amplitude and phase of the signal. The idea and results are analogous to those of the instantaneous frequency and the instantaneous bandwidth of a signal, which are low-order conditional moments of the time-varying spectral density of the signal.
Keywords :
signal processing; spectral analysis; time-frequency analysis; instantaneous bandwidth; instantaneous frequency; instantaneous kurtosis; instantaneous skew; low-order conditional moments; signal amplitude; signal analysis; signal phase; time-varying spectral density; Area measurement; Bandwidth; Eigenvalues and eigenfunctions; Fluid flow measurement; Frequency measurement; Seismic measurements; Seismology; Signal analysis; Tail; Time frequency analysis;
Journal_Title :
Signal Processing Letters, IEEE
