How can we find the noise in the signal?

How can we find the noise in the signal, then use this inverted noise to cancel the noise in order to obtain the desired signal?

Hello astroboy,
it all depends on your signal...
Easy approach: make a low pass filter (running average or similar). This will filter out high frequency noise (in my experience the common case).
Best regards,
GerdW
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

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