How to calcualte Cross power spectral denstiy in Labveiw??

Hi all,
I unable to figure out how to calculate the cross power spectral density(cpsd) in labview ??? I'm able to calculate crosspower by using
Cross Spectrum (Real-Im).VI but i need cpsd using labveiw functions.
i know that, we can get that through script node function cpsd(x,y) but i shouldn't use that it is my functional requirement.
And one more, Is this right?? psd=power spectrum/ df. where df is frequency resolution.
could any one please help me...
Thanks and regards
Giridhar

Hi girikavali,
does this help you? cross power spectral density and Analyzing Two Input Signals Using the Cross Power Spectrum VI.
Note: The "cross power spectral density" should mean the same as "cross power spectrum", says Wikipedia - CPS/CPSD.
The term "density" seems correct to me, because it is devided by the number of the points, see Cross Power Spectrum. If this is not the case, then please supply a mathematical definition, so one could know.
Cheers,

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How to calcualte Cross power spectral denstiy in Labveiw??

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