Difference of cross-spectral densities

Difference of cross-spectral densities

Generally speaking, the difference between two cross-spectral densities (CSDs) does not represent a correlation function. We will furnish a sufficient condition so that such difference be a valid CSD. Using such a condition, we will show through some examples how new classes of CSDs can be generated...

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Veröffentlicht in:Optics letters 2014-04, Vol.39 (7), p.1713-1716
Hauptverfasser: Santarsiero, M, Piquero, G, de Sande, J C G, Gori, F
Format: Artikel
Sprache:eng
Schlagworte:
Correlation
Density
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Beschreibung
Zusammenfassung:Generally speaking, the difference between two cross-spectral densities (CSDs) does not represent a correlation function. We will furnish a sufficient condition so that such difference be a valid CSD. Using such a condition, we will show through some examples how new classes of CSDs can be generated.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.39.001713