03-25-2010 04:20 PM
hi there,
I would like to do overlapping in FFT can anyone suggest me what is the best possible approach to include it. I am attaching my VI for which I have created to read the data from an ascii file and also I have used waveform segment VI so as to read teh data in segments.
thanks and regards,
Suresh
03-26-2010 05:58 PM
Hi Suresh,
Is something similar to this example what you're trying to do?
http://decibel.ni.com/content/docs/DOC-2911
I'm sure we can modify this SubVI to use Waveform Data.
03-26-2010 06:08 PM
Hi Kyle,
yeh it is something similar to the example described but I will like to have 75% overlap. the reason for me to use overlap is to have more number of data points so as to smoothen response. i would very much appreciate if you could help me out here.
Thanks and regards,
Suresh
03-29-2010 04:09 PM
Hi Suresh,
It looks like you should be able to adjust the overlap by modifying the "shift" global variable. Is there a particular issue you are having when using this example?
Aaron P
National Instruments
Applications Engineer