filter ECG and PPG signal with low pass filter

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Dominik Smolinsky
Dominik Smolinsky le 29 Avr 2021
Commenté : Mathieu NOE le 29 Avr 2021
Hello guys.
I have ECG signal with 125 sampling frequency and i have to filter it with low pass filter. Which are the best "settings of filter?"
[b, a] = fir1(%i need 2 arguments here
, 'low');
y = filtfilt(b, a, ECG);
[peaks, poloha] = findpeaks(y, 'MinPeakDistance', 320);
ECG_sprac = length(poloha);
[b, a] = fir1(%i need 2 arguments here
,'low');
y = filtfilt(b, a, PPG);
[peaks, poloha] = findpeaks(y, 'MinPeakDistance', 320);
PPG_sprac = length(poloha);
breathVAL = (ECG_sprac + PPG_sprac)/2;
  1 commentaire
Mathieu NOE
Mathieu NOE le 29 Avr 2021
hi
maybe you should first explain why the need for low pass filterning (noise ?) and also sharing the data would help
tx

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