How to calcualte Cross power spectral denstiy in Labveiw??

[girikavali]

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

[ghighuphu]

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,