INFORMATIVE PRIORS FOR MINIMUM CROSS-ENTROPY POSITIVE TIME-FREQUENCY DISTRIBUTIONS

Authors
SHAH SI LOUGHLIN PJ CHAPARRO LF ELJAROUDI A
Citation
Si. Shah et al., INFORMATIVE PRIORS FOR MINIMUM CROSS-ENTROPY POSITIVE TIME-FREQUENCY DISTRIBUTIONS, IEEE signal processing letters, 4(6), 1997, pp. 176-177
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE signal processing letters → ACNP
ISSN journal
10709908
Volume
4
Issue
6
Year of publication
1997
Pages
176 - 177
Database
ISI
SICI code
1070-9908(1997)4:6<176:IPFMCP>2.0.ZU;2-8
Abstract
A method for generating an informative prior when constructing a posit ive time-frequency distribution (TFD) by the method of the minimum cro ss-entropy (MCE) is developed, The prior is obtained from a combinatio n of the Wigner distribution (WD) and the evolutionary periodogram, an d results in a more informative MCE-TFD, as quantified via the mutual information of the distribution, The procedure allows any of the bilin ear distributions to be used in the prior, Examples illustrate the per formance of the new technique.