Timed Loop FFT Issue

[BigJWill]

Hello,

   I'm quite new with LabVIEW and I'm not certain how to go about performing a certain FFT. I would like to perform a Hanning Window Power Spectrum FFT on the data acquired with my VI, however I would to perform the FFT after all the data has been acquired from a timed loop. Please find the VI attached; note: I would like to perform the FFT on the superposition of the waveforms indexed 0 and 1 in the VI.

Note: I'm using LabVIEW 8

Thanks


Message Edited by BigJWill on 06-24-2008 11:44 AM

[Aashish_M]

Hey BigJWill,

I found some great documentation Windowing: Optimizing FFTs Using Window Functions. Towards the end, it mentions using the Spectral Measurement Express VI in LabVIEW to set up what you are trying to do.

Also I found a demo for the Hanning Window FFT. It just shows the effects when changing frequency.