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SamTaylor
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I am reading a research paper about "narrow" autocorrelation and
at the beginning there is an expression I don't unterstand
http://www.wellesley.edu/Physics/brown/pubs/acv85_P1595-P1601.pdf"
Does someone know what is meant with the word cross term?
at the beginning there is an expression I don't unterstand
The autocorrelation function is defined as the product
[tex] g(\tau) = \int\limits_{-\infty}^\infty f(t) \cdot f(t-\tau) dt [/tex]
It is convenient to calculate this as [tex] <|f(t) + f(t-\tau)|^2> [/tex],
where the cross term gives the autocorrelation.
http://www.wellesley.edu/Physics/brown/pubs/acv85_P1595-P1601.pdf"
Does someone know what is meant with the word cross term?
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