How do I find the average waveform?

[NI_user_student]

Hello Fellow Engineers!
I need some help from you. I am trying to program an application which is as follows-

I collect a signal waveform from a sensor. This waveform changes its characteristic shape mildly over each period due to disturbances and so on. I need to find the average waveform over N (say 3) periods. So, the slight changes in the characteristic shape over each period must be averaged out and I must have a resulting waveform, which reperesents the average waveform over a period. Could any of you suggest a way of doing this?

I await your creative ideas and suggestions,
With warm regards,
Aparna.

[MikeS81]

Hi NI_user_s...,

store your waveforms in a shift register. After you have all your waveforms from which you want the average, start a new loop and calculate the average over all.

Mike

[smercurio_fc]

You have not indicated whether you're collecting the waveform multiple times over a single period, or whether you're collecting a single waveform over a time frame that is multiple periods.