Multiple window time-varying spectral analysis

Authors
Cakrak, F Loughlin, PJ
Citation
F. Cakrak et Pj. Loughlin, Multiple window time-varying spectral analysis, IEEE SIGNAL, 49(2), 2001, pp. 448-453
Citations number
22
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON SIGNAL PROCESSING
ISSN journal
1053587X → ACNP
Volume
49
Issue
2
Year of publication
2001
Pages
448 - 453
Database
ISI
SICI code
1053-587X(200102)49:2<448:MWTSA>2.0.ZU;2-K
Abstract
A multiwindow method for generating a time-varying spectrum of nonstationar y signals is presented. The time-varying spectrum is computed from an optim ally weighted average of multiple orthogonal windowed spectrograms, The wei ghts are determined using linear least squares estimation with respect to a reference time-frequency distribution. Examples are provided, with perform ance criteria measures, to demonstrate and quantify the effectiveness of th e method.