variable thresholding for peak detection in ecg signal
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[qrspeaks,locs] = findpeaks(ecg signal,'MinPeakHeight',0.5,...
'MinPeakDistance',200);
I used the fixed threshold 0.5 for peak detection. But can anyone please help me to solve how to set variable threshold for finding peaks ?
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Star Strider
am 3 Jun. 2020
I’m guessing that your signal has a wandering baseline, so MinPeakHeight is inconsistent with it. If that’s true, you can either use the highpass (or bandpass) functions and filter the signal to eliminate the wandering baseline, or experiment with MinPeakProminence to isolate the R-waves (that’s usually the objective).
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Star Strider
am 4 Jun. 2020
The findpeaks function does not allow adaptive thresholding.
Use MinPeakProminence instead, as I already advised.
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