Most suitable FFT function

[alex.]

There are many FFT function in LV as attached.

I am trying to acquisit a short waveform from 5133 and make fft and get s(f).

Then it is needed to calculate F as the attached.

This is for a realtime display of the waveform and F value.

May I know which method or function I should use, thanks.

[Meadow]

Hello Turbot,

Which functions that you have tried so far and what was the outcome of those functions that you have tried? Are they not fit for your use?

Regards,

James

[JK1 · Accepted solution]

I dont have the required drivers and the vi attached is viewed as pile of vi's one above another :))

LabVIEW signal processing vi's have two FFT vi's which give real-complex and other mag-phase as outputs.  You can use the appropriate vi's for the next stage of calculations youwould like to do.

What is the output you are expecting technically (not in terms of equation) after the entire processing block.