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envelope detection after convolution of two signals

In a particular simulation i have to use the envelope detector vi on the convolution of 

two signals. However an error message saying "center frequency invalid" is shown.

 

Is there any other approach. What is the error in this approach.

 

The envelope detector vi detects the envelope successfully when the same wave form is 

constructed using formula.vi and signal generator vi.

 

 

0 Kudos
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The attached will generate an envelope of a signal.  I don't know if it does what you want or not.  If it doesn't, can you post the data that is not working?

 

 

 

Randall Pursley
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