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Article Dans Une Revue Signal Processing Année : 2014

Psi_B-energy operator and cross-power spectral density

Résumé

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.
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Dates et versions

hal-01088196 , version 1 (27-11-2014)

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Abdel-Ouahab Boudraa, Thierry Chonavel, Jean-Christophe Cexus. Psi_B-energy operator and cross-power spectral density. Signal Processing, 2014, 94, pp.236-240. ⟨10.1016/j.sigpro.2013.05.022⟩. ⟨hal-01088196⟩
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