04-07-2021 01:10 AM
Hi
I have imported a txt file in DIAdem which contains 4- channels data. I want to detect and save peak values from the channel.
I have used calculate peak & find a peak to get all peaks up to threshold level, but pulses also contain spurious pulses and count them as another peak as these values are up to threshold level, I tried peak detection but no sol.
So how can I remove all those spurious pulses from data in once??
Spurious pulses are shown in the attached file.
05-06-2021 05:26 PM
Hi shilpawalia,
It's a little hard for me to tell from your 3 images which spikes are data (with ringing) and which spikes are unwanted peaks you'd like to eliminate. Have you tried a low pass digital filter to see if you can find a cutoff frequency that passes your data but blocks the noise/spikes you're seeing? You can find that ANALYSIS dialog in the "Signal Analysis" palette.
Brad Turpin
Principal Technical Support Engineer
NI