to add a noise to a signal

[Mer]

Hello ,

Attached is a VI to average out a number of noisy waveforms and produce one clear noise free waveform.

I tested this waveform with noisy sinusoidal signals.. and got the clear noise free sinusoidal signal.

As a part of my project , i need to add noise to a random signal, n show tht i get a clear averaged signal.

I plotted a signal using  " simulate arbitrary signal"  .... but i dont know how to add noise to it ...

Please help me out  😞

Thanks

Best regards

Mer

[Dennis_Knutson]

There are noise functions in LabVIEW (i.e. Signal Processing>Signal Generation). Here's your code with uniform white noise added.

[Mer]

hello ,
thankyou so much for your help ...
i also wanted to know one more thing...
in my project, it is required that wen i click on a particular point of the averaged waveform, the co-ordinates of it should be displayed.
Basically , the time taken for tht point to occur in that final waveform should be displayed...
Is there anyway to display the co-ordinates of a point on the waveform by clickng it ??

Plz help me ..

Thnks
best regards
Mer

[smercurio_fc]

continue here

[Dennis_Knutson]

The easiest thing to do would be to just add a cursor. As you drag the cursor, the coordinates will be displayed in the cursor legend box.

[Mer]

Yes i got it... thnku u so much for yours help 🙂

Best regards
Mer


Message Edited by Mer on 05-27-2008 03:00 PM

[Dennis_Knutson]

Here's another way with a graph method and no cursor. This is recent addition to LabVIEW and had forgotten about it.

[jleon.27]

muchas gracias brot! me ayudaste a mi tambien