display trends in waveworm display?

[sean T M]

Hi All,

Is it possible to plot a trend line for a waveform display?  E.g. in the attached screenshot, I'd like to plot the line drawn in red

which follows the peak values of the green waveform.  Is this possible?

[GerdW]

Hi Sean,

you already have two plots in the graph - just add a 3rd one for the trend plot...

[unclebump]

I believe what you want to do is make an envelope of the signal. This can be done with the Hilbert transform. Find this in the examples echo detector.vi