How can i make FFT array?

[Sangkyu]

Hi, I want to FFT my real-time DAQ system.

I attach my program.

I refer to below design.

My DAQ's Fs=2000Hz

Data is acquired Every 0.5ms.

But I don't know how can i collect data to 1-D array.

I haven't been learn about Labview array......... T.T

Please help me how can i do that.

[altenbach]

You get one point at a time and the fft of that is not interesting. (I don't think you understand the typecast function).

Accumulate your values in a shift register or use "fft ptbypt".

[Bob_Schor]

---

@Sangkyu wrote:

My DAQ's Fs=2000Hz

Data is acquired Every 0.5ms.

But I don't know how can i collect data to 1-D array.

I haven't been learn about Labview array......... T.T 

---

At the beginning of this Forum, there are links to Tutorials on learning the basics of LabVIEW.  Loops and Arrays are covered very early.  You need to spend a little time (a few hours) learning LabVIEW (would you attempt to perform an FFT using C++, or Matlab, or any other Programming Language without knowing about Arrays, Loops, etc.?).  You can also find video tutorials on the Web.  Spend some time learning.

Bob Schor

[freeown]

I also think you should spend some time to learn about LabVIEW and data acquisition.

Here are some links for you. 

Tutorial: Arrays and Clusters

http://www.ni.com/white-paper/7571/en/

LabVIEW / Array / Shift register

https://www.youtube.com/watch?v=IyO-OyOCh8k

FFT Example From Single Input Data Using LabVIEW

https://forums.ni.com/t5/Example-Programs/FFT-Example-From-Single-Input-Data-Using-LabVIEW/ta-p/3526...