ΨBΨB-energy operator and cross-power spectral density
نویسندگان
چکیده
In this paper we consider the hermitian extension of the cross-ΨB-energy operator that we will denote by ΨH . In addition, cross energy terms are formalized through multivariate signals representation. We investigate the connection between the interaction energy function of ΨH 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 ΨH as a similarity between a pair of signals in frequency domain on synthetic and real data. & 2013 Elsevier B.V. All rights reserved.
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ورودعنوان ژورنال:
- Signal Processing
دوره 94 شماره
صفحات -
تاریخ انتشار 2014