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Peak detection in NI DIAdem

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.

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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

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