Abstract : In this paper we consider the hermitian extension of the cross-Psi_B-energy operator that we will denote by Psi_H. In addition, cross energy terms are formalized through multivariate signals representation. We investigate the connection between the interaction energy function of Psi_H and the cross-power spectral density (CPSD)of two complex valued signals. In particular, this link permits to use this operator for estimating the CPSD. We illustrate the interest of Psi_H as a similarity between a pair of signals in frequency domain on synthetic and real data.
https://hal.archives-ouvertes.fr/hal-01088196
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Soumis le : jeudi 27 novembre 2014 - 15:25:53 Dernière modification le : mercredi 6 janvier 2021 - 15:36:25 Archivage à long terme le : : lundi 2 mars 2015 - 09:24:55