Power Spectrum and PSD are opposite

[FCance]

Hello

I was trying to make some examples of how PS and PSD works in LabView, I found out that the spectral are opposite, I mean the PS is the PSD and the PSD is the PS.

Power Spectrum

Power Spectral Density

As you can see the PS amplitud are normalized while PSD are not, that should be the other way around.

Does anyone knows why this is happening or if i'm missing something?

Thanks

[Bob_Schor]

Well, when I tried this out, the Power Spectrum was (roughly) independent of the sampling frequency, where as the Power Spectral Density varied inversely with sampling frequency, as expected.  Better go back and learn the difference.

Bob Schor

[FCance]

Thanks for answering Bob

I'm already know the difference between both of them, what i'm saying is that from what i read (articles from Siemens,vibrationreseach,cadence, etc) the Power Spectrum should be showing a spectrum of different amplitud, while the PSD should be showing a spectrum of similar amplitud.

So in LabView, from what i posted, the PS is showing a spectrum of similar amplitud this is what the PSD should be doing.

What is a Power Spectral Density (PSD)? (siemens.com)